GB1396981A - Radio-frequency receiver with means for switching form a transmitter to a tape playback means - Google Patents

Radio-frequency receiver with means for switching form a transmitter to a tape playback means

Info

Publication number
GB1396981A
GB1396981A GB2043472A GB2043472A GB1396981A GB 1396981 A GB1396981 A GB 1396981A GB 2043472 A GB2043472 A GB 2043472A GB 2043472 A GB2043472 A GB 2043472A GB 1396981 A GB1396981 A GB 1396981A
Authority
GB
United Kingdom
Prior art keywords
contacts
relay
switchover
energization
closure
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
GB2043472A
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.)
DESPREZ M PORTES M J
Gruselle J C
Original Assignee
DESPREZ M PORTES M J
Gruselle J C
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 DESPREZ M PORTES M J, Gruselle J C filed Critical DESPREZ M PORTES M J
Publication of GB1396981A publication Critical patent/GB1396981A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/60Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals

Abstract

1396981 Electric selective signalling; radio receiving apparatus M DESPREZ M-T PORTES and J-C GRUSELLE 2 May 1972 [3 May 1971] 20434/72 Heading G4H [Also in Division H3] In an arrangement whereby a videocassette 24, 26 may be switched into a T.V. receiver circuit in place of the T.V. audio and visual channels 1, 29 and vice versa, tuned circuits 6a, 6b ... 6n detect the components of a series or parallel frequency signal causing corresponding relay contacts 12a ... 12n to close and complete a circuit for the energization of a solenoidoperated switch 3, which realigns contacts 2, 2a, 21 and 27, 27a, 28. With a parallel frequency combination, contacts 12 are closed simultaneously; with a series combination, closure of the first relay contact 12 also energizes a timelag relay 32, Fig. 3 (not shown), which retains each contact in its closed position after closure thereof until the switchover has been effected. A timing device 14 ensures that the switchover only takes place at certain preselected times. The switch comprises a disc 37, Fig. 4, having contacts disposed around its periphery; energization of solenoid 3 attracts a helical screw 36 which engages the disc and rotates it through 90 degrees, a freewheel device preventing any contra-rotation when the screw is withdrawn. Relays 12 (and the triodes elsewhere) may be replaced by transistors (Fig. 2, not shown).
GB2043472A 1971-05-03 1972-05-02 Radio-frequency receiver with means for switching form a transmitter to a tape playback means Expired GB1396981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7115871A FR2135401B1 (en) 1971-05-03 1971-05-03

Publications (1)

Publication Number Publication Date
GB1396981A true GB1396981A (en) 1975-06-11

Family

ID=9076321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2043472A Expired GB1396981A (en) 1971-05-03 1972-05-02 Radio-frequency receiver with means for switching form a transmitter to a tape playback means

Country Status (4)

Country Link
DE (1) DE2221537C3 (en)
FR (1) FR2135401B1 (en)
GB (1) GB1396981A (en)
IT (1) IT953738B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386436A (en) 1981-02-27 1983-05-31 Rca Corporation Television remote control system for selectively controlling external apparatus through the AC power line
US4392022A (en) * 1981-01-30 1983-07-05 Rca Corporation Television remote control system for selectively controlling a plurality of external apparatus
GB2116761A (en) * 1982-02-12 1983-09-28 Sony Corp Remote control system
US5887243A (en) 1981-11-03 1999-03-23 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US7769344B1 (en) 1981-11-03 2010-08-03 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods

Cited By (103)

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US4392022A (en) * 1981-01-30 1983-07-05 Rca Corporation Television remote control system for selectively controlling a plurality of external apparatus
US4386436A (en) 1981-02-27 1983-05-31 Rca Corporation Television remote control system for selectively controlling external apparatus through the AC power line
US9043859B1 (en) 1981-11-02 2015-05-26 Personalized Media Communications, Llc Signal processing apparatus and methods
US7953223B1 (en) 1981-11-03 2011-05-31 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US7769170B1 (en) 1981-11-03 2010-08-03 Personalized Media Communications, Llc Signal processing apparatus and methods
US7747217B1 (en) 1981-11-03 2010-06-29 Personalized Media Communications, Llc Signal processing apparatus and methods
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US8046791B1 (en) 1981-11-03 2011-10-25 Personalized Media Communications, Llc Signal processing apparatus and methods
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US5887243A (en) 1981-11-03 1999-03-23 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US8713624B1 (en) 1981-11-03 2014-04-29 Personalized Media Communications LLC Signal processing apparatus and methods
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US7992169B1 (en) 1981-11-03 2011-08-02 Personalized Media Communications LLC Signal processing apparatus and methods
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Also Published As

Publication number Publication date
FR2135401B1 (en) 1973-05-11
DE2221537C3 (en) 1980-09-25
DE2221537B2 (en) 1980-01-31
DE2221537A1 (en) 1972-11-16
IT953738B (en) 1973-08-10
FR2135401A1 (en) 1972-12-22

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee