FR2395651A1 - METHOD AND CIRCUIT FOR DIGITAL TRANSMISSION OF ANALOGUE VALUES FOR REMOTE CONTROL OF SEVERAL INFRARED RADIATION CHANNELS - Google Patents

METHOD AND CIRCUIT FOR DIGITAL TRANSMISSION OF ANALOGUE VALUES FOR REMOTE CONTROL OF SEVERAL INFRARED RADIATION CHANNELS

Info

Publication number
FR2395651A1
FR2395651A1 FR7816752A FR7816752A FR2395651A1 FR 2395651 A1 FR2395651 A1 FR 2395651A1 FR 7816752 A FR7816752 A FR 7816752A FR 7816752 A FR7816752 A FR 7816752A FR 2395651 A1 FR2395651 A1 FR 2395651A1
Authority
FR
France
Prior art keywords
circuit
transmitted
setting information
function
remote control
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.)
Granted
Application number
FR7816752A
Other languages
French (fr)
Other versions
FR2395651B1 (en
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of FR2395651A1 publication Critical patent/FR2395651A1/en
Application granted granted Critical
Publication of FR2395651B1 publication Critical patent/FR2395651B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
    • H03J9/06—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using electromagnetic waves other than radio waves, e.g. light

Abstract

In a remote controller for communications devices, such as televisions, the set analog values for changing the device functions are converted into pulses which control an RF generator (7) whose signals are transmitted on a carrier frequency by means of infrared light to the device which is to be controlled. The latter has a receiving circuit (11) for the infrared light signals, a demodulator circuit (12) and an evaluation circuit (13-18) with function-control stages (19) connected downstream. In order to reduce circuit cost at the transmitting and receiving ends, to achieve faster access times for function setting and more accurate selection of the transmitted setting information, the pulses which are proportional to the set analog values are transmitted by means of pulse phase modulation (PPM) and stored in memories (18) as direct setting information following demodulation of the received signal, the respective memory status of said memories serving as setting information for the function setter (19) which is to be controlled.
FR7816752A 1977-06-24 1978-06-05 METHOD AND CIRCUIT FOR DIGITAL TRANSMISSION OF ANALOGUE VALUES FOR REMOTE CONTROL OF SEVERAL INFRARED RADIATION CHANNELS Granted FR2395651A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2728496A DE2728496C2 (en) 1977-06-24 1977-06-24 Remote control device

Publications (2)

Publication Number Publication Date
FR2395651A1 true FR2395651A1 (en) 1979-01-19
FR2395651B1 FR2395651B1 (en) 1984-11-30

Family

ID=6012274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816752A Granted FR2395651A1 (en) 1977-06-24 1978-06-05 METHOD AND CIRCUIT FOR DIGITAL TRANSMISSION OF ANALOGUE VALUES FOR REMOTE CONTROL OF SEVERAL INFRARED RADIATION CHANNELS

Country Status (4)

Country Link
JP (1) JPS5410877A (en)
CH (1) CH641611A5 (en)
DE (1) DE2728496C2 (en)
FR (1) FR2395651A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102815A2 (en) * 1982-09-02 1984-03-14 BRITISH TELECOMMUNICATIONS public limited company Optical communication
FR2684824A1 (en) * 1991-12-06 1993-06-11 Alcatel Business Systems Method of transmitting digital information between two sending/receiving units, and device implementing this method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059834A (en) * 1983-09-12 1985-04-06 Nippon Telegr & Teleph Corp <Ntt> Communication system
DE3337205A1 (en) * 1983-10-13 1985-04-25 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Infrared remote control system for an electric appliance, in particular a TV receiver
JPS60200641A (en) * 1984-03-24 1985-10-11 Matsushita Electric Works Ltd Remote monitor control terminal pair system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916788B2 (en) * 1974-07-20 1984-04-17 マブチモ−タ− カブシキガイシヤ radio control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102815A2 (en) * 1982-09-02 1984-03-14 BRITISH TELECOMMUNICATIONS public limited company Optical communication
EP0102815A3 (en) * 1982-09-02 1985-05-29 British Telecommunications Optical communication
FR2684824A1 (en) * 1991-12-06 1993-06-11 Alcatel Business Systems Method of transmitting digital information between two sending/receiving units, and device implementing this method

Also Published As

Publication number Publication date
DE2728496A1 (en) 1979-01-04
JPS5410877A (en) 1979-01-26
DE2728496C2 (en) 1985-11-28
CH641611A5 (en) 1984-02-29
FR2395651B1 (en) 1984-11-30

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