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WO1996005605A1 - Ameliorations relatives a des systemes de commutation - Google Patents

Ameliorations relatives a des systemes de commutation Download PDF

Info

Publication number
WO1996005605A1
WO1996005605A1 PCT/AU1995/000508 AU9500508W WO9605605A1 WO 1996005605 A1 WO1996005605 A1 WO 1996005605A1 AU 9500508 W AU9500508 W AU 9500508W WO 9605605 A1 WO9605605 A1 WO 9605605A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
emitted
signals
emitting
emitting means
Prior art date
Application number
PCT/AU1995/000508
Other languages
English (en)
Inventor
Nigel Eric Rose
Original Assignee
Nigel Eric Rose
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
Priority claimed from AUPM7431A external-priority patent/AUPM743194A0/en
Priority claimed from AUPM7432A external-priority patent/AUPM743294A0/en
Application filed by Nigel Eric Rose filed Critical Nigel Eric Rose
Priority to AU31588/95A priority Critical patent/AU3158895A/en
Publication of WO1996005605A1 publication Critical patent/WO1996005605A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Definitions

  • This invention relates to improvements to switching systems and in particular to a method and apparatus for switching.
  • switching devices are characterised by their reliance on mechanical components such as in toggle switches, knife switches, plunger switches and rotary switches which may be either operated directly or remotely by secondary means.
  • Other switching devices comprise semiconductor devices such as transistors.
  • Semiconductor switches are commonly used in electronic equipment. These switches are also limited by the speed of operation, the size, their relative complexity, and/or their difficulty and expense to manufacture for specific purposes. The speed of operation of these switches particularly in data processing applications such as in computers limits the speed of operation of a computer.
  • Components of computers have been characterised by a reliance on direct current transistor type switches in a variety of forms resulting in limitations on computational speed and further restricting computer development by problems arising directly from the heat output from such devices and restricting further miniaturisation imposed by the physical requirements of such devices.
  • the present invention aims to provide switching methods and systems which overcome or alleviate the aforementioned disadvantages of the prior art or at least provide an alternative to the prior art switching methods and systems.
  • the present invention aims to provide switching methods and systems which have enhanced capabilities in their speed of operation.
  • the present invention thus provides in a first aspect a switching system including first signal emitting means for emitting a first signal, second signal emitting means for selectively emitting a second signal, and signal detecting means for detecting signals emitted by said first and second signal emitting means, said signal detecting means providing variations in output and thereby a switching function in accordance with said signals selectively emitted by said second signal emitting means.
  • the second signal emitting means is adapted to selectively emit a signal which cancels the signal emitted by said first signal emitting means as received or detected by said detecting means.
  • the signal emitted by the second signal emitter is at the same or substantially the same frequency or range of frequencies as the signal emitted by the first signal emitting means but 180 degrees out of phase with that signal.
  • the signal emitted by the second signal emitting means adds to the signal emitted by the first signal emitting means as received or detected by the detecting means whereby the detecting means detects variations in amplitude of signal received in accordance with the signal emitted by the second signal emitting means.
  • the signal emitted by the second signal emitting means may be in phase with that emitted by the first signal emitting means. This variation in detected amplitude may also be use to provide a switching function.
  • the first signal emitting means may comprise one or more signal emitting devices adapted to emit signals at discrete frequencies in the electromagnetic spectrum.
  • the second signal emitting means may also comprises one or more signal emitting devices adapted to emit signals at discrete frequencies in the electromagnetic spectrum matched to the frequencies of respective signals emitted by first signal emitting devices.
  • the signal detecting means may comprise one or more signal detecting means for detecting the presence or of the signal or signals emitted by the first and second signal emitting device or devices.
  • switching of the signal emitting devices may be accomplished by the cancellation or otherwise of the signal or signals emitted by the first emitting device or devices by the signal or signals emitted by the corresponding second emitting device or devices.
  • the signal detecting device or devices may be adapted to register in variations in amplitude of the signals emitted. In this instance, switching is accomplished by either the cancellation or amplification of the signals emitted by the first emitting device or devices at the point of registration of the detecting device or devices.
  • one or more of the signals emitted may be employed as a functional clock for the control of the operating sequence of the equipment allowing the use of a clock speed equal to or a multiple or division of the frequency of that signal or signals.
  • the signal emitting means may be arranged to emit signals having a frequency in the visible light spectrum in which case the signal detecting means comprises a light detector or detectors. Alternatively, the signal emitting means may be arranged to emit signals of other frequencies in the electromagnetic spectrum.
  • the emitting means and detecting means are arranged in line of sight of each whereby the signals may be transmitted or received.
  • the present invention provides a method of switching, said method including the steps of emitting a first signal, emitting a second signal, detecting said first and second signals to provide a switching output in accordance with the frequency and phase of said first and second signals.
  • the second signal may be selectively emitted whereby to provide selective variation in the switching output.
  • the second signal may be emitted so as to be 180 degrees out of phase with the first signal whereby when emitted, it effectively cancels the first signal.
  • the first and second signals may be at substantially the same frequency or range of frequencies.
  • the second signal may be in phase with the first signal to add to the amplitude of the signal detected.
  • Fig. 1 is a block diagram of a switching system according to the present invention.
  • Figs. 2 to 5 illustrate schematically the operation of the switching system according to the present invention.
  • a switching system 10 including a first signal emitter 11 for emitting a signal at a specific frequency or range of frequencies, and a detector 12 for detecting the signal emitted by the first signal emitter 11.
  • the system 10 further includes a second signal emitter 13 which is adapted to emit a signal at the same specific frequency or range of frequencies as the first signal emitter 11.
  • the signals emitted by the second signal emitter 13 however are 180 degrees out of phase with the signals emitted by the first signal emitter 11.
  • the signal detector 12 is also capable of detecting the signal emitted by the second signal emitter 13.
  • the signal emitter 11 In operation and assuming that the signal emitter 11 emits a signal at a certain frequency, that signal is detected by the detector 12 which is excited and provides an output upon detecting that signal. If the second signal emitter 13 however also emits a signal which is at the same frequency as that emitted by the first signal emitter 11 but 180 degrees out of phase, that signal is also detected by the detector 12. As however the respective signals emitted by the first and second signal emitters are substantially the same but 180 degrees out of phase, the signal emitted by the second emitter will in effect cancel the signal emitted by the first signal emitter 11 thus providing no output from or excitation of the detector 12. Thus the excitation or otherwise of the detector 12 provides a switching effect or signal which can be used in many different switching applications.
  • the signal emitters 11 and 13 may be laser emitters and the detector 12 comprises a light detector which is either excited when for example a light signal is received from the emitter 11 but which is not excited if it receives from the emitter 13 a signal of the same frequency but of opposite phase.
  • the output of the detector 12 thus serves to provide a switching function.
  • Figs. 2 to 5 illustrate schematically the principles of operation of the switching system 10 of the invention described above.
  • a primary signal emitter 11 emits a primary signal 14 which is continuously detected at the sensor or detector 12, the signal in this example being in the form of a sine wave.
  • This detected signal may be used as a functional clock for cycling the operating sequence of data processing equipment at or at multiples or divisions of the frequency of the signal.
  • a secondary emitter 13 emits a secondary signal 15 which is of the same frequency as the primary signal 14 but 180 degrees out of phase, it will continuously cancel the signal 14 emitted by the primary emitter 11 as detected by the detector 12.
  • the detector 11 will provide an output or will change state intermittently as governed by the interruption provided by the secondary signal 15. This therefore provides a switching function.
  • the system of the invention is primarily used in a configuration where the signal emitted by the secondary emitter 13 cancels the signal emitted by the primary emitter 11 to thereby control the state of the detector, the detector 12 may also be selected to provide various degrees of excitement depending upon the amplitude of the signal which it receives. Switching in this instance is accomplished by the variation in amplitude of the signal received by the detector.
  • the signal or signals emitted by the secondary emitter 13 may be in phase with the signal emitted by the primary emitter 12 so as to add to the amplitude of that signal as detected by the detector.
  • the output provided by the detector may vary in accordance with the application. For example no output may be provided where the signal emitted by the second emitter cancels the signal emitted by the first emitter whilst the detector may provide a high output where the signal of the first emitter is not cancelled. Alternatively, the detector may provide a high output where the signals cancel and a low output where the first signal is not cancelled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)

Abstract

Système de commutation (10) comprenant un premier émetteur de signaux (11) et un second émetteur de signaux (13) ainsi qu'un détecteur ou capteur (12) conçu pour détecter ou capter lesdits signaux. Si le signal émis par le second émetteur (13) présente un déphasage de 180 degrés par rapport au signal émis par le premier émetteur (11), le signal de ce dernier est effectivement annulé de sorte qu'aucune sortie ne soit générée par le détecteur ou capteur (12).
PCT/AU1995/000508 1994-08-15 1995-08-15 Ameliorations relatives a des systemes de commutation WO1996005605A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU31588/95A AU3158895A (en) 1994-08-15 1995-08-15 Improvements to switching systems

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPM7431 1994-08-15
AUPM7431A AUPM743194A0 (en) 1994-08-15 1994-08-15 Advances in computer components and operational control
AUPM7432A AUPM743294A0 (en) 1994-08-15 1994-08-15 Advances in switching mechanisms
AUPM7432 1994-08-15

Publications (1)

Publication Number Publication Date
WO1996005605A1 true WO1996005605A1 (fr) 1996-02-22

Family

ID=25644733

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1995/000508 WO1996005605A1 (fr) 1994-08-15 1995-08-15 Ameliorations relatives a des systemes de commutation

Country Status (1)

Country Link
WO (1) WO1996005605A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1084774C (zh) * 1996-04-30 2002-05-15 录象色彩股份公司 防眩光抗静电涂层及方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1367348A (en) * 1970-06-29 1974-09-18 Optical Memory Systems Optical logic function generator
EP0220838A2 (fr) * 1985-10-23 1987-05-06 Tai-Her Yang Dispositif de traitement optique et acoustique
WO1988002132A1 (fr) * 1986-09-16 1988-03-24 British Telecommunications Public Limited Company Dispositif optique
EP0360686A2 (fr) * 1988-09-20 1990-03-28 Nippon Telegraph And Telephone Corporation Dispositif de commutation entièrement optique comportant un étalon non linéaire
EP0376124A2 (fr) * 1988-12-27 1990-07-04 Honeywell Inc. Convertisseur optique
US4959534A (en) * 1989-08-28 1990-09-25 At&T Bell Laboratories Differential optical logic arrangement
US4967068A (en) * 1989-08-28 1990-10-30 At&T Bell Laboratories Single-ended optical logic arrangement
EP0599552A1 (fr) * 1992-11-24 1994-06-01 AT&T Corp. Méthode et appareil électro-optique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1367348A (en) * 1970-06-29 1974-09-18 Optical Memory Systems Optical logic function generator
EP0220838A2 (fr) * 1985-10-23 1987-05-06 Tai-Her Yang Dispositif de traitement optique et acoustique
WO1988002132A1 (fr) * 1986-09-16 1988-03-24 British Telecommunications Public Limited Company Dispositif optique
EP0360686A2 (fr) * 1988-09-20 1990-03-28 Nippon Telegraph And Telephone Corporation Dispositif de commutation entièrement optique comportant un étalon non linéaire
EP0376124A2 (fr) * 1988-12-27 1990-07-04 Honeywell Inc. Convertisseur optique
US4959534A (en) * 1989-08-28 1990-09-25 At&T Bell Laboratories Differential optical logic arrangement
US4967068A (en) * 1989-08-28 1990-10-30 At&T Bell Laboratories Single-ended optical logic arrangement
EP0599552A1 (fr) * 1992-11-24 1994-06-01 AT&T Corp. Méthode et appareil électro-optique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1084774C (zh) * 1996-04-30 2002-05-15 录象色彩股份公司 防眩光抗静电涂层及方法

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