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WO2007029365A1 - Dispositif de reproduction - Google Patents

Dispositif de reproduction Download PDF

Info

Publication number
WO2007029365A1
WO2007029365A1 PCT/JP2006/305233 JP2006305233W WO2007029365A1 WO 2007029365 A1 WO2007029365 A1 WO 2007029365A1 JP 2006305233 W JP2006305233 W JP 2006305233W WO 2007029365 A1 WO2007029365 A1 WO 2007029365A1
Authority
WO
WIPO (PCT)
Prior art keywords
unit
operation disk
video
disk
audio
Prior art date
Application number
PCT/JP2006/305233
Other languages
English (en)
Japanese (ja)
Inventor
Yasuhiro Endo
Kazuhiro Onizuka
Toru Aikawa
Shigeru Ota
Original Assignee
D & M Holdings, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by D & M Holdings, Inc. filed Critical D & M Holdings, Inc.
Publication of WO2007029365A1 publication Critical patent/WO2007029365A1/fr

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/005—Reproducing at a different information rate from the information rate of recording

Definitions

  • the present invention relates to a playback device that plays back stored audio signals and video signals asynchronously.
  • CD players that can perform special playback on CDs (Compact Disc) similar to special playback using analog records (so-called scratch playback, etc.) have become common. ing.
  • This CD player is preferably used especially by clubs, home parties, etc. by V, DJ (Disc Jockey), etc.
  • This CD player stores an audio signal reproduced from a CD, CD-R or the like in a memory.
  • This CD player generally includes an analog record-like jog dial, and controls the reading speed and order of audio signals stored in the memory in accordance with the speed and rotation of the jog dial in the forward or reverse direction.
  • an operator such as a DJ can generate a sound effect such as a scratch sound similar to the case of using an analog record player (for example, JP-A-2001- 312857, JP-A 2003-346469, JP-A 2004-303295).
  • the signal processing device described in the above publication stores a video signal and an audio signal in separate buffer memories, and adjusts reproduction of either the video signal or the audio signal. .
  • the operator determines which playback speed of the video signal or audio signal is to be adjusted using the selection button.
  • a playback apparatus includes a playback unit that plays back audio data and video data recorded on a recording medium, and audio data played back by the playback unit.
  • An audio data storage unit to store, a video data storage unit to store video data reproduced by the playback unit, audio data stored in the audio data storage unit, and video data stored in the video data storage unit
  • the audio data and the z or video data are read from the audio data storage unit and the Z or video data storage unit.
  • a control unit for controlling the audio data from the audio data storage unit.
  • a first operation disk unit that receives an operation input related to one of reading or reading of video data from the video data storage unit, reading of audio data from the audio data storage unit, or the video data
  • a second operation disk part provided inside the first operation disk part for receiving an operation input related to the other of the reading of the video data from the storage part.
  • the reproducing apparatus having the above configuration has a first sensor unit that generates a signal corresponding to the rotation state of the first operation disk unit, and a first sensor unit that generates a signal corresponding to the rotation state of the second operation disk unit.
  • 2 sensor parts, and the first operation disk part and the second operation disk part are the operation parts.
  • the rotation state changes according to the input, and the control unit changes the first sensor unit and the second sensor unit according to the operation input based on the signals input from the Z and second sensor units.
  • the rotational state of the operation disk part and Z or the second operation disk part may be determined, and the reading of audio data and Z or video data from the audio data storage part and Z or video data storage part may be controlled. .
  • the first operation disk portion and the second operation disk portion are placed, and the first operation disk portion and the second operation disk portion are rotated independently of each other.
  • the unit may further be provided.
  • the first operation disk unit and the second operation disk unit rotate the same according to the rotation of the disk unit. Rotate in speed and direction.
  • one surface of the first operation disk portion and one surface of the second operation disk portion constitute the same plane.
  • the second operation disk portion protrudes, for example, inside the first operation disk portion.
  • FIG. 1 is a block diagram showing a configuration of a playback device according to an embodiment of the present invention.
  • FIG. 2 is a diagram showing the configuration of the jog dial unit according to the embodiment of the present invention.
  • FIG. 3 is a diagram showing a top view of the jog dial part.
  • FIG. 4 is a diagram showing an example of a pulse signal generated by the optical sensor according to the rotation state.
  • the playback device performs DJ or digital video data and Z or digital video data recorded on a recording medium such as a CD or DVD by the same operation as that for operating an analog record.
  • Free playback can be provided to operators such as VJ, and can be suitably used in clubs, studios, and the like.
  • FIG. 1 shows the configuration of a playback apparatus according to an embodiment of the present invention.
  • Playback device shown in Fig. 1 Control unit 3, playback unit 2, audio RAM (Random Access Memory) 7, video RAM 12, audio signal processing unit 6, video signal processing unit 11, and audio DAC (Digital to Analog Converter) 8 And a video DAC 13, a display unit 5, and an operation unit 4.
  • Audio RAM Random Access Memory
  • video RAM Video RAM
  • audio signal processing unit 6 video signal processing unit 11, and audio DAC (Digital to Analog Converter) 8
  • DAC Digital to Analog Converter
  • the control unit 3 controls the overall operation of the playback device 1 of the present embodiment described below.
  • the playback unit 2 is configured to read a recording medium, and reads and plays back digital data recorded on a recording medium such as a CD or a DVD.
  • the digital signal reproduced by the reproduction unit 2 is divided into a digital audio signal and a digital video signal under the control of the control unit 3, and is input to the audio signal processing unit 6 and the video signal processing unit 11, respectively.
  • the playback unit 2 may read digital data such as an external memory in which digital data is stored, for example, an external hard disk or a flash memory.
  • the audio RAM 7 stores the digital audio signal input to the audio signal processing unit 6.
  • the video RAM 12 stores the digital video signal input to the video signal processing unit 7.
  • the audio signal processing unit 6 manages the memory address of the audio RAM 7. In addition, the audio signal processing unit 6 reads the audio data stored in the audio RAM 7 in the address order and speed designated by the control unit 3.
  • the video signal processing unit 11 manages the memory address of the video RAM 12. Further, the video signal processing unit 11 reads the video data stored in the video RAM 12 in the address order and speed designated by the control unit 3.
  • the audio DAC 8 converts the digital audio signal read from the audio RAM 7 by the audio signal processing unit 6 into an analog audio signal.
  • the analog audio signal output from the audio DAC 8 is output to a device such as a speaker through the audio output terminal 10.
  • An amplifier may be provided between the audio DAC 8 and the audio output terminal 10 to output an amplified analog audio signal.
  • the video DAC 13 converts the digital video signal read from the video RAM 12 by the video signal processing unit 11 into an analog video signal. Output from video DAC 13 The analog video signal is output to a device such as a display via the video output terminal 15. An amplifier may be provided between the video DAC 13 and the video output terminal 15 to output an amplified analog video signal. Depending on the type of display, a digital video signal of a predetermined format may be output without providing the video DAC 13.
  • the display unit 5 includes a liquid crystal display device or the like.
  • the display unit 5 is not limited to the power display contents for displaying information such as the currently playing track, chapter, file playback time, and operation contents.
  • the operation unit 4 includes a jog dial unit, a playback button, a playback stop button, an eject button, and the like (all not shown in FIG. 1), and receives an instruction input through an operator's operation.
  • the control unit 3 controls the audio signal processing unit 6 and the video signal processing unit 11 to read out digital data stored in the audio RAM 7 and the video RAM 12 according to the rotation speed and the rotation direction of the jog dial unit.
  • audio data and video data can be independently and asynchronously controlled by the configuration of the jog dial section shown below.
  • FIG. 2 is a view showing a side cross section of the jog dial portion 4a according to the present embodiment.
  • the jog dial part 4a shown in FIG. 2 includes a disk part 25, a first sheet part 27, a second sheet part 28, a first operation disk part 29, a second operation disk part 30, a rotary shaft 32, A two-sensor unit 33, a first sensor unit 34, a second scale unit 35, a third sensor unit 36, a third scale unit 38, an upper holding unit 31, and a lower holding unit 37 are provided.
  • the first operation disk portion 29 is disposed above the panel 20 that constitutes the upper surface of the playback device 1.
  • the first operation disk portion 29 has a diameter corresponding to an analog record of 10 cm to 30 cm, for example, and is configured with an annular member force having a thickness of 3 cm.
  • the diameter and thickness of the first operation disk portion 29 are set to a size that can give sufficient operability to the operator.
  • the first operation disk part 29 is made of a metal material or a plastic material that provides a preferable operability for the operator.
  • a plurality of slit portions 29 a are provided on the outer peripheral portion of the first operation disc portion 29.
  • the slit part 29a is provided together with the first sensor part 34, which will be described later, for the control part 3 to determine the rotational direction and rotational speed of the first operation disk part.
  • the control unit 3 determines the determined first operation circle
  • the audio signal processing unit 6 controls the order and speed of reading audio signals from the audio RAM 7 according to the rotation direction and rotation speed of the panel unit 29.
  • FIG. 3 is a diagram for explaining the details of the slit portion 29a.
  • FIG. 3 (a) shows a top view of the first operation disk portion 29, and
  • FIG. 3 (b) shows an enlarged view of the portion within the dotted circle in FIG. 3 (a).
  • a plurality of slit portions 29a are provided in the outer peripheral portion of the first operation disk portion 29 in a strip shape at substantially equal intervals.
  • the slit part 29a is formed as a substantially rectangular opening.
  • the shape of the opening is not limited to a rectangle and may be any shape.
  • the slit part 29a is formed on the upper surface of the first operation disk part 29 by printing.
  • the first sensor unit 34 is fixed to the panel 20 at a position in the vicinity of the outer periphery of the first operation disk unit 29 where the slit unit 29 a can be detected.
  • the first sensor unit 34 is attached to a portion of the panel 20 where the upper surface force protrudes.
  • the first sensor unit 34 includes two optical sensors 34a and 34b provided on substantially the same circumference.
  • the optical sensors 34a and 34b include a pair of light emitting elements and light receiving elements (both not shown).
  • the first operation disk part 29 and the optical sensors 34a and 34b constitute a rotary encoder.
  • the light emitting elements of the optical sensors 34a and 34b project beam light having a constant intensity from one surface side of the first operation disk portion 29, and the light receiving element is provided on the other surface side to receive transmitted light.
  • the light receiving element also has a photoelectric conversion element force, and converts the detected light beam into a pulse signal and outputs it.
  • the light-emitting element and the light-receiving element may be provided on the same surface side so that the reflected light from the slit is detected and a pulse signal is output.
  • the slit portion 29a is formed by printing, if the printing paint contains carbon, the accuracy with which the first light sensor portion 34 detects reflected light can be improved.
  • a tachometer having a different DC output voltage polarity depending on the rotation direction may be used.
  • the control unit 3 determines the rotation state (rotation speed and rotation direction) of the first operation disk unit 29 based on the noise signal input from the first sensor unit 34.
  • the second operation disk part 30 is a disk provided substantially concentrically inside the first operation disk part 29. It is comprised from the shaped member.
  • the second operation disk part 30 is preferably made of the same material as the first operation disk part 29 and has the same thickness.
  • the outer peripheral edge of the second operation disk part 30 is formed such that the upper part has a larger diameter than the lower part.
  • the inner peripheral edge of the first operation disk portion 29 is formed such that the upper portion has a smaller diameter than the lower portion and is fitted to the outer peripheral edge of the second operation disk portion 30.
  • the first operation disk part 29 and the second operation disk part 30 are arranged so that the first operation disk part 29 does not move above the second operation disk part 30 in a state of being fitted to each other.
  • the first operation disk part 29 and the second operation disk part 30 form one disk in appearance.
  • the outer diameter of the second operation disk portion 30 is set to, for example, about 14 cm so that the force determined by the width of the first operation disk portion 29 can be easily operated.
  • the second operation disk part 30 is fixed to the rotating shaft 32 by the upper holding part 31.
  • the upper holding part 31 is arranged on the second operation disk part 30, and its concave part is fitted and fixed to a convex part provided on the second operation disk part 30.
  • a bearing (not shown) is formed by integral molding on the rotating shaft 32 that is a holding shaft of the second operation disk portion 30. The rotary shaft 32 is inserted and held via a washer, not shown on the panel 20 and not shown on the bearing.
  • the rotary shaft 32 is provided through substantially the center of the second sheet portion 28, the disk portion 25, and the third scale portion 38, extends through the panel 20 and extends to the inside of the housing, and its lower end is
  • the second scale portion 25 is fixed to the approximate center.
  • the second scale portion 35 is also configured as a disk-shaped member, and rotates at the same direction and speed as the second operation disk portion 30. That is, the rotation of the second operation disk part 30 is transmitted to the second scale part 35 via the rotation shaft 32, and the second operation disk part 30 and the second scale part 35 rotate integrally.
  • a plurality of slit portions (not shown) similar to the first operation disk portion 29 are formed in a band shape on the outer peripheral portion of the second scale portion 35.
  • the second sensor unit 33 is fixed to the lower surface of the panel 20 and the vicinity of the outer periphery of the second scale unit 35.
  • the second sensor unit 33 has the same configuration as the first sensor unit 34, projects light from one surface side of the second scale unit 35, generates a pulse signal according to the presence or absence of transmitted light, and controls the control unit 3 Sent to.
  • the control unit 3 determines the rotation state (rotation speed and direction) of the second scale unit 35, that is, the rotation state of the second operation disk unit 30 based on the pulse signal received from the second sensor unit 33.
  • the control unit 3 determines the determined rotation direction and rotation speed of the second operation disk unit 30. Therefore, the video signal processing unit 11 controls the order and speed of reading video signals from the video RAM 12.
  • the disk portion 25 is composed of a disk-shaped member having a diameter substantially the same as or smaller than the outer diameter of the first operation disk portion 29, and is below the first operation disk portion 29 and the second operation disk portion 30. Arranged on concentric circles.
  • the disk portion 25 is also configured with, for example, a PC (polycarbonate) force.
  • a first sheet part 27 is provided between the disk part 25 and the first operation disk part 29, and a second sheet part 28 is provided between the disk part 25 and the second operation disk part 30. It is done.
  • the inner diameter of the first sheet portion 27 is substantially equal to the lower inner peripheral edge of the first operation disk portion 29, and the outer diameter thereof is substantially the same or slightly smaller than the outer diameter of the first operation disk portion 29.
  • the outer diameter of the second sheet portion 28 is substantially equal to the outer diameter of the second operation disk portion 30.
  • the rotating shaft 32 penetrates through these approximate centers.
  • the first sheet portion 27 and the second sheet portion 28 are made of a plastic or plastic fiber that has a small friction coefficient and hardly generates static electricity.
  • the disk portion 25 is rotationally driven by a motor 21 fixed to the panel 20.
  • a pulley portion 23 is attached to the motor rotating shaft 22 of the motor 21.
  • a belt 24 is hung on a pulley part 26 of a disk part 25 of a pulley part 23 attached to a motor rotating shaft 22 of the motor 21.
  • the motor 21 rotates at a predetermined speed.
  • the driving force of the motor 21 is transmitted to the belt 24 applied to the pulley portion 23 to rotate the disk portion 25.
  • the disk portion 25 is rotated at, for example, 33 + 1Z3RPM or 45 RPM which is substantially the same as the rotational speed of the analog disc player.
  • the third scale portion 38 is also configured as a disk-shaped member, and is provided between the disk portion 25 and the upper surface of the panel 20.
  • the rotation shaft 32 passes through substantially the center of the third scale portion 38.
  • the third scale part 38 is fixed to the disk part 25 by the lower holding part 37 and rotates integrally with the disk part 25.
  • a plurality of slit portions (not shown) similar to the first operation disk portion 29 are formed in a band shape on the outer peripheral portion of the third scale portion 38.
  • the third sensor unit 36 is fixed to the upper surface of the panel 20 and in the vicinity of the outer periphery of the third scale unit 38.
  • the third sensor unit 36 has the same configuration as that of the first sensor unit 34.
  • the third sensor unit 36 also projects light on one side of the third scale unit 38 where the slits are formed, and generates a pulse signal according to the presence or absence of transmitted light. Generated and sent to control unit 3.
  • the control unit 3 receives the pulse signal received from the third sensor unit 36.
  • the rotational speed of the third scale section 38 that is, the rotational speed of the disk section 25 is determined based on the number.
  • the control unit 3 monitors the rotational speed of the disk unit 25 and controls the motor 21 so as to maintain the rotational speed of the disk unit 25 at a predetermined speed.
  • the rotation direction of the motor 21 is preferably the same as the rotation direction (clockwise) of the turntable of the analog record player. In this case, the operator can obtain an operation feeling similar to that of performing special playback using an analog record.
  • the first operation disk portion 29, the second operation disk portion 30 and the like rotate around the rotation axis 32 according to the rotation of the disk portion 25.
  • the first operation disk part 29, the second operation disk part 30, the first sheet part 27, the second sheet part 28, the rotating shaft 32 and the like can rotate at substantially the same speed as the disk part 25. That is, the first operation disk part 29 and the second operation disk part 30 have a surface area sufficient to follow the rotation of the disk part 25, and by adjusting the material and thickness, the intervening first sheet part 27 and Even if the second sheet portion 28 has a small friction coefficient, its own weight and moment of inertia are designed to be sufficiently small so as to start rotating at the same rotational speed as the disk portion 25.
  • control unit 3 determines the rotation direction and the rotation speed of the first operation disk unit 29 based on the pulse signal input from the first sensor unit 34 will be described.
  • the two optical sensors 34a and 34b respectively receive the pulse signals a and b having different phases (for example, a phase difference of 90 degrees). Each is configured to output.
  • the control unit 3 can determine which of the optical sensors 34a and 34b is the pulse signal.
  • the rotation speed is specified by the number of pulses of either the pulse signal a or the pulse signal b input for a certain time.
  • FIGS. ⁇ And are diagrams illustrating examples of pulse signals input from the optical sensors 34a and 34b to the control unit 3 in a state where the first operation disk unit 29 rotates in the forward direction and the reverse direction.
  • the optical sensor 34a and the optical sensor 34b of the first sensor unit 34 detect the transmitted light when they are on the slit unit 29a of the first operation disk unit 29, and Outputs a pulse signal (ON or H) that indicates When not on the slit portion 29a, a pulse signal (OFF or L) indicating that there is no on the slit portion 290a is output.
  • a pulse signal ON or H
  • a pulse signal OFF or L
  • the optical sensor 34a is set at a position advanced in a predetermined direction (positive direction) by n pitch + 1Z4 pitch with respect to the optical sensor 34b.
  • the pitch is a unit indicating the interval between the slit portions 29a
  • n is a natural number.
  • the control unit 3 determines the rotation direction of the first operation disk unit 29 by previously storing the output pattern generation order and the rotation direction in a memory or the like in association with each other. This process is called the rotation direction discrimination process.
  • the two optical sensor forces respectively provided in the second sensor unit 33 and the third sensor unit 36 are also based on the output pulse signals. Determine the same way.
  • control unit 3 The control performed by the control unit 3 according to the rotational speed and direction of the first operation disk unit 29, the second operation disk unit 30, and the disk unit 25 determined as described above will be described next.
  • the control unit 3 controls the order and speed at which the audio signal processing unit 6 reads audio signals from the audio RAM 7 in accordance with the rotation direction and rotation speed of the first operation disk unit 29.
  • the control unit 3 is in a state where the first operation disk unit 29 is rotating in a certain direction at a predetermined speed such as an angular speed of a turn table during playback of the analog record player (normally This is called a rotation state. ),
  • the audio signal is controlled to be read out in the normal playback order (ascending order address) and playback speed.
  • control section 3 determines that the first operation disk section 29 is rotating in the direction opposite to the normal rotation state, the control section 3 controls the audio signal to be read out in the reverse order (descending order address) to the normal playback order. I will do it.
  • control unit 3 determines that the first operation disk unit 29 is rotating at a speed faster than the normal rotation state, the control unit 3 controls the audio signal to be read out at a speed higher than the normal reproduction speed.
  • control unit 3 determines that the first operation disk unit 29 is rotating at a speed slower than the normal state, the control unit 3 controls the audio signal to be read out at a speed slower than the normal reproduction speed.
  • control unit 3 controls to stop reading the audio signal.
  • control unit 3 controls the order and speed at which the video signal processing unit 11 reads video signals from the video RAM 8 according to the rotation direction and rotation speed of the second operation disk unit 30.
  • the control in this case is the same as the audio signal readout control corresponding to the rotation state of the first operation disk part 29.
  • the control unit 3 controls the playback unit 2 to read recorded data from a recording medium such as a DVD.
  • audio data and video data are recorded on the recording medium.
  • the control unit 3 controls the playback unit 2 to divide the read data into audio signals and video signals and store them in the audio RAM 7 and the video RAM 12, respectively.
  • the control unit 3 drives the motor 21 to rotate the disk unit 25 at a predetermined direction and speed (normal rotation state).
  • the first operation disk part 29 and the second operation disk part 30 rotate following the rotation of the disk part 25.
  • the control unit 3 controls the motor 21 so that the disk unit 25 is in a normal rotation state as described above, for example.
  • the control unit 3 sends the audio signal and the video signal from the audio RAM 7 and the video RAM 12 respectively at the normal playback speed and order.
  • the audio signal processing unit 6 and the video signal processing unit 11 are controlled to read.
  • the control unit 3 controls the audio signal processing unit 6 and the video signal processing unit 11 so as to perform predetermined processing (reverse reproduction, effect, etc.) on the read audio signal and video signal and output them.
  • the audio DAC 6 and the video DAC 13 convert the output digital signal into an analog signal and output it to an external device (speaker, display, etc.) connected to the audio output terminal 10 and the video output terminal 15.
  • an external device speaker, display, etc.
  • it may be output as a digital signal of a predetermined method.
  • the operator reduces the rotation speed of the first operation disk portion 29 by applying a force against rotation such as placing a hand on the first operation disk portion 29 rotating in the normal rotation state.
  • a force against rotation such as placing a hand on the first operation disk portion 29 rotating in the normal rotation state.
  • the rotation speed of the first operation disk unit 29 is decreased, the number of pulses of the pulse signal generated from the first sensor unit 34 within a predetermined time is decreased according to the rotation speed of the first operation disk unit 29.
  • the control unit 3 determines the rotational speed of the first operation disk unit 29 from the number of pulses of the pulse signal input from the first sensor unit 34 for a certain period of time, and in accordance with the determined rotational speed, the audio RAM 7
  • the audio signal processing unit 6 is controlled so as to reduce the speed at which the digital audio signal is read out from the signal.
  • the audio DAC 8 converts the audio signal processing unit 6 into an analog audio signal according to the speed at which the audio signal is read from the audio RAM 7 and outputs the analog audio signal.
  • the control unit 3 controls the audio signal processing unit 6 so as to stop reading out the digital audio signal of the audio RAM 7.
  • the rotational speed of the first operation disk portion 29 gradually decreases in this way, and the rotation stops.
  • the disk portion 25 continues to rotate in the normal rotation state without being affected by the change in the rotation speed of the first operation disk portion 29 because the friction coefficient of the first sheet portion 27 is small.
  • the second operation disk part 30 placed on the disk part 25 via the second sheet part 28 rotates in the normal rotation state in the same manner as the disk part 25.
  • the control unit 3 controls the video signal processing unit 11 so as to read the digital video signal from the video RAM 12 at the reading speed and order during normal playback.
  • the video DAC 13 converts the video signal processing unit 11 into an analog video signal according to the speed at which the video signal processing unit 11 reads the video signal from the video RAM 12, and outputs the analog video signal.
  • the operator applies a force against the stronger rotation, such as pressing the first operation disk part 29 with a strong upper force, and the force is applied between the first operation disk part 29 and the first sheet part 27.
  • a friction force greater than a predetermined value is generated, the rotational speed of the disk portion 25 is also reduced by the friction force.
  • the rotational speed of the second operating disk part 30 that rotates at the same speed as the disk part 25 also decreases.
  • the rotation speed of the second operation disk part 30 decreases, the number of pulses of the pulse signal generated from the second sensor part 33 in a certain time also decreases according to the rotation speed of the second operation disk part 30.
  • the control unit 3 determines the rotation speed, and controls the video signal processing unit 11 so as to reduce the speed of reading the digital video signal from the video RAM 12 according to the determined rotation speed.
  • the control unit 3 controls the video signal processing unit 11 to read out the digital video signal from the video RAM 12 at the read speed during normal playback.
  • the control unit 3 controls the audio signal processing unit 6 to read out the digital audio signal from the audio RAM 7 at the read speed during normal playback.
  • control unit 3 performs the same control to reduce and stop the output speed of the video signal by the operation of reducing the rotation of the second operation disk 30 by the operator and the operation of stopping the rotation, respectively.
  • the rotation of the disk part 25 and the first operation disk part 29 is reduced and stopped by the operator's stronger pressing operation of the second operation disk part 30 and the output speed of the audio signal is accordingly increased. Lower and stop.
  • the control unit 3 discriminates the rotation speed of the first operation disk unit 29 from the audio RAM 7 according to the determined rotation speed. Control to increase the speed of reading audio signals.
  • the disk portion 25 continues to rotate in the normal rotation state without being affected by the change in the rotation speed of the first operation disk portion 29. Therefore, the output of the video signal controlled by the second operation disk part 30 that rotates following the disk part 25 becomes the reading speed during normal playback.
  • the control unit 3 performs control so as to increase the speed at which the video signal is read out in accordance with the rotational speed of the second operation disk unit 30 determined by the pulse signal from the second sensor unit 33.
  • the output of the audio signal and the video signal can be asynchronously accelerated by the operation of only the first operation disk unit 29 by the operator.
  • the second operation disk part 30 only With this operation, the output of the video signal and the audio signal can be speeded up asynchronously.
  • the first operation disk part 29 and the second operation disk part 30 rotate the disk part 25 at a predetermined speed. Immediately, rotation in a predetermined speed and rotation direction is resumed.
  • the control unit 3 controls to read out the digital audio signal and video signal at the normal playback speed. do.
  • the operator applies a force to the first operation disk portion 29 rotating in the normal rotation state to rotate in the reverse direction.
  • the control unit 3 detects that the rotation direction of the first operation disk unit 29 has been reversed by the rotation direction determination process performed at predetermined time intervals, the control unit 3 reads the digital audio signal from the audio RAM 7 in a descending address. Control the signal processor 6. At this time, the control unit 3 also determines the rotational speed of the first operation disk unit 29 for the pulse power of the pulse signal input for a certain period, and reads the digital audio signal from the audio RAM 7 according to the determined rotational speed. The audio signal processor 6 is controlled to change the speed.
  • the disk portion 25 rotates at a predetermined speed without being affected by the rotation speed and direction of the second operation disk portion 30 because the friction coefficient of the second sheet portion 28 is small. Is possible. Therefore, the video signal is controlled so as to be read out in the order and the speed during normal playback.
  • the first operation disk part 29 follows the disk part 25 that continues to rotate in the normal rotation state and normally rotates. Resume rotation in state.
  • the control unit 3 detects that both the rotation direction and the rotation speed have returned to the normal rotation state by the rotation direction discrimination process, the control unit 3 controls the audio signal processing unit 6 to read out the audio signal in the read speed and read order during normal playback. Control.
  • the operation is the same when the operator reverses the second operation disk 30. That is, it is detected by the rotation direction discrimination process of the second operation disk part 30 that the second operation disk part 30 is reversed. Then, the control unit 3 controls to read the video signal in descending order. Further, the reading speed is controlled in accordance with the rotational speed of the second operation disk 30 that also discriminates the pulse signal force. Since the disk unit 25 continues to rotate in the normal rotation state, the first operation disk unit 29 maintains the normal rotation state, and the audio signal is reproduced in the same manner as in normal reproduction.
  • the control unit 3 determines the rotational speed and direction of the first operation disk unit 29 from the pulse signal input from the first sensor unit 34.
  • the control unit 3 controls the audio signal processing unit 6 according to the determined rotation speed and rotation direction.
  • the audio signal processing unit 6 controls the reading speed and reading order of the digital audio signals stored in the audio RAM 7 (reading audio signals in ascending order or reading out in descending order).
  • the digital audio signal read from the audio RAM 7 is converted into an analog audio signal by the audio DAC 8 and output as a sound effect such as a rubbing sound from the equipment connected to the audio output terminal 10.
  • control unit 3 determines the rotational speed and direction of the second operation disk unit 30 from the pulse signal input from the second sensor unit 33.
  • the control unit 3 controls the video signal processing unit 11 according to the determined rotation speed and rotation direction.
  • the video signal processing unit 11 controls the reading speed and reading order of the digital video signals stored in the video RAM 12 (reading the video signals in ascending order or reading out in descending order).
  • the digital video signal read from the video RAM 12 is converted into an analog video signal by the video DAC 13 and output as a special video such as reverse video playback from a device connected to the video output terminal 15.
  • the operator operates the first operation disk part 29 and the second operation disk part 30 with different hands or different fingers, respectively, so that the audio signal and the video signal are Can be played back asynchronously with the desired playback order and Z or speed.
  • the first operation disk unit 29 for controlling the output of the audio signal and the second operation disk unit for controlling the output of the video signal. 30, the operator can easily and freely obtain desired video and audio without performing an operation for switching a control target (audio signal or video signal).
  • the audio signal output can be performed synchronously through the operation of the first operation disk unit 29.
  • the audio signal output can also be controlled synchronously through the operation of the operation disk 30. Therefore, the operator can easily obtain more complicated video and audio.
  • the first operation disk unit 29 receives an operation input related to reading of audio data
  • the second operation disk unit 30 receives an operation input related to reading of video data.
  • the first operation disk portion 29 and the second operation disk portion 30 are placed on the disk portion 25 and constitute substantially the same plane.
  • the present invention is not limited to this, and in order to improve operability, the inner second operation disc portion 30 is configured to be thicker than the first operation disc portion 29 or configured to protrude inward. Also good.
  • the rotation states of the first operation disk part 29, the second operation disk part 30, and the disk part 25 are determined using an optical sensor including a light emitting element and a light receiving element. did.
  • the rotation state detection method is not limited to this, and any method may be used.
  • the present invention is extremely useful when used in a playback apparatus that plays back stored audio signals and video signals asynchronously.

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

La présente invention concerne une section de manette jog (4a) munie d'une première section de disque en marche de type bande (29) pour recevoir une entrée d'opération relative à la lecture de données audio d'une RAM audio (7) ou à la lecture de données vidéo d'une RAM vidéo (12), ainsi que d'une seconde section de disque en marche (30) placée sur un côté interne de la première section (29) pour recevoir une entrée d'opération relative à la lecture des données audio de la RAM audio (7) ou la lecture des données vidéo de la RAM vidéo (12) différentes de celles reçues par la première section de disque en marche.
PCT/JP2006/305233 2005-09-06 2006-03-16 Dispositif de reproduction WO2007029365A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-257233 2005-09-06
JP2005257233A JP2008282430A (ja) 2005-09-06 2005-09-06 再生装置

Publications (1)

Publication Number Publication Date
WO2007029365A1 true WO2007029365A1 (fr) 2007-03-15

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PCT/JP2006/305233 WO2007029365A1 (fr) 2005-09-06 2006-03-16 Dispositif de reproduction

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JP (1) JP2008282430A (fr)
TW (1) TW200713209A (fr)
WO (1) WO2007029365A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007990A1 (fr) 2010-07-14 2012-01-19 パイオニア株式会社 Système de reproduction, procédé de reproduction et programme de ce système
JP5667005B2 (ja) * 2011-07-20 2015-02-12 パイオニア株式会社 再生装置、再生方法およびそのプログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11144394A (ja) * 1997-11-10 1999-05-28 Victor Co Of Japan Ltd ディスク及びディスクのスクラッチ再生装置
JP2002150689A (ja) * 2000-11-10 2002-05-24 Teac Corp 記録媒体再生装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11144394A (ja) * 1997-11-10 1999-05-28 Victor Co Of Japan Ltd ディスク及びディスクのスクラッチ再生装置
JP2002150689A (ja) * 2000-11-10 2002-05-24 Teac Corp 記録媒体再生装置

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TW200713209A (en) 2007-04-01
JP2008282430A (ja) 2008-11-20

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