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EP2323003A2 - Dispositif de reproduction audio - Google Patents

Dispositif de reproduction audio Download PDF

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Publication number
EP2323003A2
EP2323003A2 EP10013380A EP10013380A EP2323003A2 EP 2323003 A2 EP2323003 A2 EP 2323003A2 EP 10013380 A EP10013380 A EP 10013380A EP 10013380 A EP10013380 A EP 10013380A EP 2323003 A2 EP2323003 A2 EP 2323003A2
Authority
EP
European Patent Office
Prior art keywords
audio signal
sound
alarm
audio
time
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10013380A
Other languages
German (de)
English (en)
Other versions
EP2323003A3 (fr
Inventor
Yasuhiro Matsunuma
Daiki Kuramitsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
Original Assignee
Yamaha Corp
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 Yamaha Corp filed Critical Yamaha Corp
Publication of EP2323003A2 publication Critical patent/EP2323003A2/fr
Publication of EP2323003A3 publication Critical patent/EP2323003A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details
    • G04G13/023—Adjusting the duration or amplitude of signals
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/028—Producing acoustic time signals at preselected times, e.g. alarm clocks combined with a radio

Definitions

  • the present invention relates to an audio reproducing device that has an alarming function of starting output of a sound of an audio signal from a radio receiver or a mobile terminal at a preset time.
  • a device having a radio receiver incorporated with a wake-up call function has been utilized (for example, patent document 1).
  • Such a device has a function of awakening a user by turning on a reception of radio broadcasting or generating an alarm sound when an alarm time set by the user comes.
  • Patent Document 1 JP-A-5-022172
  • a purpose of the invention is to provide an audio reproducing device capable of allowing a user to comfortably wake up.
  • an audio reproducing device comprising:
  • the audio signal processing section starts the outputting of the audio signal at a time that is the predetermined rising time period before the alarm time so as to make the sound volume of the audio signal to a preset sound volume when the alarm time comes and controls the characteristic of the filtering process so that the characteristic of the filtering process does not limit a frequency band of the audio signal when the alarm time comes.
  • the characteristic of the filtering process to the audio signal is a low-pass filter characteristic for cutting off a high frequency band of the audio signal.
  • the audio reproducing device further includes an alarm sound generating section configured to generate an alarm sound different from the audio signal, wherein the alarm sound generating section generates the alarm sound when the alarm time comes.
  • an alarm sound generating section configured to generate an alarm sound different from the audio signal, wherein the alarm sound generating section generates the alarm sound when the alarm time comes.
  • the audio reproducing device further includes a snooze operation section configured to temporarily stop the audio signal, wherein the audio signal processing section stops the outputting of the audio signal for a predetermined snooze time period when the snooze operation section is operated, and wherein after the snooze time period has elapsed, the audio signal processing section increases the sound volume of the audio signal to the preset sound volume in a time period shorter than the predetermined rising time period while not performing the filtering process.
  • a snooze operation section configured to temporarily stop the audio signal, wherein the audio signal processing section stops the outputting of the audio signal for a predetermined snooze time period when the snooze operation section is operated, and wherein after the snooze time period has elapsed, the audio signal processing section increases the sound volume of the audio signal to the preset sound volume in a time period shorter than the predetermined rising time period while not performing the filtering process.
  • an uncomfortable frequency band is removed and generation of a sound such as a music piece having quality of an ear-friendly sound is started, a user is gradually awakened from sleep so that the user can comfortably wake up.
  • the audio reproducing device has a function of amplifying and outputting a reproduction sound of a radio tuner or a portable reproducing device.
  • the audio reproducing device has a function of alarming.
  • the audio reproducing device starts reproduction of an audio signal and generates a beep sound depending on modes of the function of alarming when a preset time comes.
  • Fig. 1 is a block diagram of the audio reproducing device.
  • a control section 10 controls operations of the entirety of the device.
  • An operation section 11, a display section 12, a clock (a time counter) 13, a signal processing section 22, a tuner 20, a selector 21, a sound source 23, an amplifier 24 and etc. are connected to the control section 10.
  • the operation section 11 includes various kinds of switches and buttons such as a selection switch 11A for switching between audio sources, an alarm set/stop button 11B, a time setting button 11C, a snooze button 11D, a volume switch 11E, and etc.
  • the display section 12 is a dot matrix display unit having LED elements arranged in lateral and longitudinal directions and displays a time, a radio channel, a name of a music piece in a state of reproduction, and the like.
  • a portable audio reproducing device 2 and the built-in tuner 20 are connected to the selector 21.
  • the selector 21 selects one of the portable audio reproducing device 2 and the built-in tuner 20 in response to an operation of the selection switch 11A so as to connect the selected one to the signal processing section 22 at a subsequent stage. Meanwhile, the portable audio reproducing device 2 is connected to the audio reproducing device 1 in wired or wireless communication.
  • the signal processing section 22 is configured by a DSP (Digital Signal Processor) and performs a filtering process or a sound volume regulation process of an input audio signal.
  • the sound source 23 is an FM sound source, and generates a beep sound for alarming and inputs it to the signal processing section 22.
  • An audio signal processed by the signal processing section 22 is input to the amplifier 24.
  • the amplifier 24 amplifies the audio signal and outputs the amplified audio signal to the speaker 25.
  • the speaker 25 outputs the audio signal as a sound.
  • the audio reproducing device 1 has the function of alarming.
  • the function of alarming means a function wherein a user sets a time (an alarm time) and a sound is output when the alarm time comes.
  • a user can select one of reproduction of an audio signal (an audio mode) selected by the selector 21 as the source, generation of a beep sound (a beep sound mode) and a combination of the reproduction of the audio signal and the generation of the beep sound (a combination mode).
  • Figs. 2A and 2B are drawings showing controlling of a sound volume of an audio signal and controlling of generation of a beep sound before and after the alarm time, each of the drawings having a horizontal axis representing an elapsed time and a vertical axis representing an auditory sound volume (an actual sound volume).
  • Figs. 3A, 3B and 3C are drawings showing controlling of a filtering characteristic, controlling of a volume value and change in the actual sound volume in the starting of reproduction of the audio signal.
  • reproduction of the audio signal is started at a time 3 minutes before the alarm time set by the user.
  • a volume value as a sound volume control value of the audio signal and a cut-off frequency of the filtering process for controlling sound quality of the audio signal are gradually increased for a time period of 3 minutes.
  • the time period of 3 minutes is the rising time period for alarming.
  • the filtering process functions as a low-pass filter for cutting off a high frequency band.
  • Fig. 2A shows a control characteristic of the cut-off frequency of the filtering process.
  • the cut-off frequency is maintained at 300 Hz for 30 seconds from the start of the reproduction. With this operation, a sound in the middle to high frequency range is cut off and only a sound in the low frequency range (like a sound of a fetal heartbeat) is output.
  • the cut-off frequency is controlled in such a manner that the cut-off frequency is gradually increased from a time 30 seconds after the start of reproduction to a time 2 minutes after the start thereof. When a time period of 2 minutes has elapsed from the start thereof, the cut-off frequency is made to be infinite (non-filtering process).
  • Fig. 3B is a drawing showing a control characteristic of the volume value.
  • the volume value is controlled so as to be linearly increased from -100 dB to a preset value (dB value).
  • the preset value of the volume value is a sound volume value which is set by the user when setting the alarm.
  • Figs. 2A and 2B when the time period of 3 minutes has elapsed from the start of the reproduction of the audio signal and the alarm time comes, the volume of the reproduction sound of the audio signal is increased to the value set by the user as well as the beep sound is generated. After that, the audio signal is output in the preset sound volume and the beep sound is generated so as to awaken the user.
  • the audio reproducing device 1 stops the beep sound and goes into a snooze state while continuing reproduction of the audio signal as shown in Fig. 2A .
  • the time period of the snooze state is 5 minutes.
  • the audio reproducing device 1 generates the beep sound, again.
  • the snooze button 11D is turned on by the user in this state, the snooze state is repeated similarly to the above.
  • the alarm set/stop button 11B is turned on by the user, the audio reproducing device 1 finishes the alarm operation and the power source is turned off.
  • the audio reproducing device 1 stops only the beep sound while reproducing the audio signal.
  • the audio reproducing device 1 also stops the reproduction of the audio signal and goes into the snooze state (see Fig. 2B ). While Fig. 2B shows a sequence in which after stopping the beep sound by the snooze button 11D, the snooze button 11D is turned on again to stop the audio signal. Even when the snooze button 11D is turned on before the beep sound is generated (in the way of increasing the sound volume of the audio signal), the audio reproducing device 1 goes into the snooze state similarly to the above.
  • the audio reproducing device 1 starts the reproduction of the audio signal again, and gradually increases the sound volume of the audio signal. At that time, the audio reproducing device 1 controls the volume value in such a manner that the volume value is increased from -100 dB to the preset value for 1 minute. In the above, the audio reproducing device 1 does not perform the filtering process. That is because it can be understood that the user is possibly already awakened to some degree. After the lapse of 1 minute from the completion of controlling the volume value, the audio reproducing device 1 generates the beep sound. The operation in a time period in which the audio signal and the beep sound are generated together, is as shown in Fig. 2A .
  • FIGS. 4A and 4B are drawings showing controlling of a sound volume of an audio signal and controlling of generation of a beep sound right after the alarm time, each of the drawings having a horizontal axis representing an elapsed time and a vertical axis representing an auditory sound volume (an actual sound volume) similarly to Figs. 2A and 2B .
  • Fig. 4A is the drawing showing the controlling of the volume value in the audio mode.
  • the audio reproducing device 1 since the audio signal itself is a sound for awaking the user, the audio reproducing device 1 starts reproduction of the audio signal when the alarm time comes. While the control characteristic of the volume value is similar to that in Fig. 3B , the audio reproducing device 1 does not perform the filtering process as shown in Fig. 3A . That is because the audio signal itself is a sound for awakening the user.
  • the audio reproducing device 1 stops the audio signal and goes into the snooze state for a time period of 5 minutes.
  • the audio reproducing device 1 restarts the reproduction of the audio signal and controls the volume value so as to allow the volume value to reach the preset value from -100 dB in 1 minute.
  • Fig. 4B is a drawing showing controlling of generation in the beep sound mode.
  • the audio reproducing device 1 starts generation of the beep sound.
  • the snooze button 11D is turned on in a state that the beep sound is generated, the audio reproducing device 1 stops the beep sound and goes into the snooze state for 5 minutes.
  • the audio reproducing device 1 restarts the generation of the beep sound.
  • Fig. 5 is the flowchart showing the operation of the control section 10 during the setting of the alarm.
  • the alarm mode includes the above described audio mode, the beep sound mode and the combination mode.
  • the audio mode is selected by the user, the fact that the audio mode is selected is stored in a memory (S2) and the operation is proceeded to step S5.
  • step S3 In a case where the beep sound mode is selected by the user, the fact that the beep sound mode selected is stored in a memory (S3) and the operation is proceeded to step S7. In a case where the combination mode is selected by the user, the fact that the combination mode is selected is stored in a memory (S4) and the operation is proceeded to step S5.
  • step S5 selection of the audio source is received. While the selectable audio sources are a portable reproducing device 2 and a radio tuner 20 in Fig. 3 , the audio sources are not limited to the portable reproducing device 2 and the radio tuner 20.
  • setting of the volume value in the alarm mode is received (S6). This volume value in the alarm mode is not associated with a volume value in a normal mode of reproducing a sound and is only used in the alarm mode.
  • setting of the alarm time is received (S7). After receiving the alarm time, the setting items are stored into the memory and the power source is turned off (S8).
  • Fig. 6 is the flowchart showing the operation of controlling an activation of alarming of the control section 10. This operation is processed from the setting of the alarm to the activation of the alarming operation. The operation is performed periodically at a constant interval (for example, 1 second) after the alarm setting operation shown in Fig. 5 .
  • a mode of alarming is the combination mode (S11).
  • the mode of alarming is the combination mode (YES in S11)
  • it is determined whether the current time is 3 minutes before the alarm time (S12), or the alarm time (S18).
  • the current time is neither the alarm time nor 3 minutes before the alarm time, the present operation is completed.
  • the current time is 3 minutes before the alarm time (YES in S12)
  • the operations of step S13 through step S17 are performed.
  • the power source of the entirety of the audio reproducing device 1 is turned on (S13), a value of 300 Hz is set to the signal processing section 22 as the cut-off frequency for the filtering process (S14), and a value of -100 dB is set as the volume value (S15). And then, the reproduction of the audio signal is started (S16).
  • the starting of the reproduction of the audio signal is a process in which a reception signal obtained by tuning to a selected channel is input into the signal processing section 22.
  • the starting of the reproduction of the audio signal is a process in which a power source of the portable reproducing device 2 is turned on in a remote control manner and reading (reproducing) of a predetermined audio file is started.
  • the control characteristics shown in Figs. 3A and 3B are set to the signal processing section 22, and the signal processing section 22 performs controlling of the filtering and controlling of the sound volume for 3 minutes (S17).
  • the controlling of the cut-off frequency in the filtering process and controlling of the volume value are performed by the signal processing section 22 itself, it is possible to cause the control section 10 to set the cut-off frequency and the volume value to the signal processing section 22 every second in another processing operation.
  • the beep sound is generated in addition to the reproduction of the audio signal (S26).
  • the power source of the entirety of the audio reproducing device 1 is turned on (S22), and a value of -100 dB is set to the signal processing section 22 as the volume value (S23). And then, the reproduction of the audio signal is started (S24).
  • the control characteristic shown in Fig. 3B is set to the signal processing section 22 and the controlling of the sound volume is performed for 3 minutes (S25).
  • the controlling of the volume value is performed by the signal processing section 22 itself, it is possible to cause the control section 10 to set the volume value to the signal processing section 22 every second in another processing operation.
  • the power source of the audio reproducing device 1 is turned on (S26) and the sound source 23 generates the beep sound so as to output it from the speaker 25 (S27).
  • Fig. 7A is a flowchart showing an operation when the snooze button 11D is turned on.
  • the snooze button 11D When the snooze button 11D is turned on, it is first determined whether or not the beep sound is being generated (S30). When the beep sound is being generated, the beep sound is stopped (S31) and a timer is started (S34). When the beep sound is not being generated (NO in S30), it is determined whether or not the audio signal is being reproduced (S32). When the audio signal is being reproduced (YES in S32), the reproduction of the audio signal is stopped (S33) and the timer is started (S34). When both of generation of the beep sound and reproduction of the audio signal are not being performed, the operation is completed.
  • a case where the beep sound is not being generated and the audio signal is not being reproduced means that the alarm time has not come yet in the alarm mode or the audio reproducing device 1 is in the snooze state shown in Fig. 2B .
  • the alarm mode is not set, the turn-on operation of the snooze button 11D is ignored.
  • Fig. 7B is a flowchart showing an operation when the alarm stop button 11B is turned on.
  • the alarm stop button 11B When the alarm stop button 11B is turned on, the beep sound being generated and the audio sound being reproduced at that time are stopped (S40 and S41). After the alarm mode is canceled and the operation is proceeded to the normal mode (S42), the power source is turned off (S43). After that, when the power source is turned on by the user, the audio reproducing device 1 operates in the normal mode.
  • the operation in the normal mode means that the audio source selected by the user via the selection switch 11A is reproduced at the volume value set via the volume switch 11E.
  • Fig. 8 is a flowchart showing a time management operation. That is, the operation of managing the timer that starts in response to the operation of the snooze button 11D. The operation is periodically performed at a predetermined time interval (for example, 1 second) while the timer operates.
  • a predetermined time interval for example, 1 second
  • the current time is a timing that a time period of 5 minutes has elapsed from the start of the timer (S49).
  • the current time is the timing that the time period of 5 minutes has elapsed, the snooze state is cancelled and the reproduction of the audio signal or the generation of the beep sound is restarted.
  • the control section 10 When the time period of 5 minutes has elapsed (YES in S49), it is determined whether the mode of alarming is the beep sound mode (S50) or the combination mode in a state of reproducing of the audio signal (S51). In a case of the beep sound mode (YES in S50), or the combination mode in the state of reproducing of the audio signal (YES in S51), the control section 10 generates the beep sound (S52), stops the timer (S53), and then completes the operation.
  • a value of -100 dB as a volume value is set to the signal processing section 22 (S54) and the reproduction of the audio signal is restarted (S55).
  • a control characteristic for increasing the volume value to a preset value by spending 1 minute is set to the signal processing section 22 so as to allow the signal processing section 22 to perform controlling of the volume value (S56).
  • the control section 10 it is possible to cause the control section 10 to set the volume value to the signal processing section 22 every second in another processing operation. And, then it is determined whether or not the mode of alarming is the combination mode (S57).
  • the mode of alarming is the combination mode (YES in S57)
  • the operation is completed while the timer is left to be in the operating state in order to generate the beep sound 1 minute later.
  • the mode of alarming is not the combination mode, i.e., it is the audio mode (NO in S57)
  • the timer is stopped and the operation is completed.
  • step S49 In a case where it is determined at step S49 that it is not a timing that a time period of 5 minutes has elapsed from the start of the timer, the operation is proceeded to step S50 and it is determined whether or not it is a timing that a time period of 6 minutes has elapsed from the start of the timer (S60). Counting of a time period up to 6 minutes is performed only in the case of the combination mode. When the time period of 6 minutes has elapsed (YES in S60), the beep sound is generated in addition to the reproduction of the audio signal (S61) and the timer is stopped (S62).
  • the cut-off frequency of the low-pass filter in the filtering process of the signal processing section 22 is changed from 300 Hz to the infinite in the combination mode.
  • a rate of decrease e.g., -100 dB to 0 dB
  • a predetermined frequency e.g. 300 Hz.
  • the filtering process may be performed in addition to the control of the volume value of the audio signal in the audio mode.
  • a filtering process having a characteristic different from that in Fig. 3A may be performed.
  • the reproduction is started at a time before the alarm time by a predetermined time period (e.g., 3 minutes) even in the audio mode and the volume value may become a preset value at the alarm time.
  • any sound can be used as the beep sound to be generated for alarming.
  • a simple buzzer sound or bell sound can be used, and a music piece that does not conflict with the audio signal can be used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuits Of Receivers In General (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
EP10013380A 2009-10-06 2010-10-06 Dispositif de reproduction audio Withdrawn EP2323003A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009232235A JP5943534B2 (ja) 2009-10-06 2009-10-06 オーディオ再生装置

Publications (2)

Publication Number Publication Date
EP2323003A2 true EP2323003A2 (fr) 2011-05-18
EP2323003A3 EP2323003A3 (fr) 2011-08-03

Family

ID=43837879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10013380A Withdrawn EP2323003A3 (fr) 2009-10-06 2010-10-06 Dispositif de reproduction audio

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EP (1) EP2323003A3 (fr)
JP (1) JP5943534B2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12051321B2 (en) 2020-02-27 2024-07-30 Panasonic Intellectual Property Management Co., Ltd. Control method, control device, and recording medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7368559B1 (ja) 2022-07-22 2023-10-24 レノボ・シンガポール・プライベート・リミテッド 情報処理装置および制御方法

Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH0522172A (ja) 1991-07-12 1993-01-29 Clarion Co Ltd ラジオ受信機

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JPH0236915B2 (ja) * 1984-10-05 1990-08-21 Sanyo Electric Co Sunuuzutsukidenshitokei
JPS61194500A (ja) * 1985-02-22 1986-08-28 リズム時計工業株式会社 電子音発生装置
JPH01148991A (ja) * 1987-12-07 1989-06-12 Matsushita Electric Ind Co Ltd アラーム音発生装置
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WO1999053455A1 (fr) * 1998-04-08 1999-10-21 Koninklijke Philips Electronics N.V. Procede de production de signaux d'alarme
US20030142591A1 (en) * 2002-01-31 2003-07-31 International Business Machines Corporation Interactive alarm clock and method
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Publication number Priority date Publication date Assignee Title
JPH0522172A (ja) 1991-07-12 1993-01-29 Clarion Co Ltd ラジオ受信機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12051321B2 (en) 2020-02-27 2024-07-30 Panasonic Intellectual Property Management Co., Ltd. Control method, control device, and recording medium

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Publication number Publication date
JP5943534B2 (ja) 2016-07-05
JP2011081114A (ja) 2011-04-21
EP2323003A3 (fr) 2011-08-03

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