GB1452024A - Electronic multi-media programmer - Google Patents

Electronic multi-media programmer

Info

Publication number
GB1452024A
GB1452024A GB3317874A GB3317874A GB1452024A GB 1452024 A GB1452024 A GB 1452024A GB 3317874 A GB3317874 A GB 3317874A GB 3317874 A GB3317874 A GB 3317874A GB 1452024 A GB1452024 A GB 1452024A
Authority
GB
United Kingdom
Prior art keywords
july
rec
switches
mode
channels
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.)
Expired
Application number
GB3317874A
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.)
Columbia Scientific Industries Corp
Original Assignee
Columbia Scientific Industries 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 Columbia Scientific Industries Corp filed Critical Columbia Scientific Industries Corp
Publication of GB1452024A publication Critical patent/GB1452024A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/16—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using magnetic record carriers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/12—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac

Abstract

1452024 Electric selective signalling COLUMBIA SCIENTIFIC INDUSTRIES CORP 26 July 1974 [30 July 1973] 33178/74 Heading G4H The invention relates to a control device for programmed electric control of remotely located apparatus (e.g. audio visual equipment) using a plurality of audiotone channels. The device operates in both RECORD (REC) and PLAYBACK (PB) modes, determined by the setting of switches at various points of the network. In the PB mode, tone signals from, e.g., a tape recorder 14 are applied via a sensitivity control 16 and an input amplifier 12 to frequency detection channels 10, the frequencies 20 being octavely related so as to avoid false triggering by unwanted harmonics. Recognition of an incoming tone causes circuitry in the appropriate channel to transmit a signal to a detector 30 which converts it to D.C. and compares it with a reference voltage; if the incoming signal exceeds the threshold, then an output driver circuit 32 (containing an SCR and Zener diodes to remove the effects of transients) is actuated. The REC mode is selected by means of switches located in the various components of Fig. 1 and by means of a switch 28 which allows frequencies generated by selected circuit 18-22 (now acting as a plurality of oscillators) to pass via an output amp 34 to a meter M-1 and to recorder 14 (via jack plug J-2). Detailed circuit embodiments for the components of Fig. 1 are described with reference to Figs. 2-5 (not shown).
GB3317874A 1973-07-30 1974-07-26 Electronic multi-media programmer Expired GB1452024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US384088A US3881185A (en) 1973-07-30 1973-07-30 Electronic multi-media programmer

Publications (1)

Publication Number Publication Date
GB1452024A true GB1452024A (en) 1976-10-06

Family

ID=23515987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3317874A Expired GB1452024A (en) 1973-07-30 1974-07-26 Electronic multi-media programmer

Country Status (6)

Country Link
US (1) US3881185A (en)
JP (1) JPS5070792A (en)
CA (1) CA1030237A (en)
DE (1) DE2436691A1 (en)
FR (1) FR2239819B3 (en)
GB (1) GB1452024A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075668A (en) * 1975-12-18 1978-02-21 Educational Electronics Of California Inc. Digital logic control for audio visual programs and method therefor
US4080637A (en) * 1976-06-07 1978-03-21 Chase Arthur B Synchronized tape slide projector control system
US4086005A (en) * 1976-10-26 1978-04-25 Audio-Sine, Inc. Audio-visual programmer
US4379312A (en) * 1981-01-12 1983-04-05 Indal Corp. Control system for audio-visual projector
DE3621680C2 (en) * 1986-06-27 1994-04-28 Sel Alcatel Ag Multi-frequency code receiver and device equipped therewith for transmitting signals
US5574718A (en) * 1994-07-01 1996-11-12 Dsc Communications Corporation Signal protection and monitoring system
KR102534861B1 (en) * 2016-12-23 2023-05-22 삼성전자주식회사 Amplifier module and control method thereof
CN110704073B (en) * 2019-09-06 2023-04-18 北京时代民芯科技有限公司 Microcontroller programmer and programming method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480738A (en) * 1966-05-02 1969-11-25 Univ Southern Illinois Image display apparatus and methods
GB1193851A (en) * 1967-01-11 1970-06-03 Atomic Energy Authority Uk Improvements in or relating to apparatus for Automatic Programme Control
US3591734A (en) * 1968-06-10 1971-07-06 Recorded Sales Visual Presenta A system for selectively controlling multiple operations
US3678221A (en) * 1969-09-11 1972-07-18 Minnesota Mining & Mfg Detection of recorded control signals upon reproduction from recording medium
NL164984C (en) * 1970-03-06 Ganz & Co STEERING TAPE RECORDER FOR A CONNECTED SLIDE PROJECTOR.
US3772473A (en) * 1971-05-04 1973-11-13 D Parham Automatic audio-visual program control apparatus
US3691544A (en) * 1971-06-22 1972-09-12 Harold Gallina Control circuit responsive to synch signals

Also Published As

Publication number Publication date
CA1030237A (en) 1978-04-25
FR2239819B3 (en) 1977-05-20
FR2239819A1 (en) 1975-02-28
DE2436691A1 (en) 1975-02-20
US3881185A (en) 1975-04-29
JPS5070792A (en) 1975-06-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee