GB1116102A - Interrogating system for subscription television receivers - Google Patents

Interrogating system for subscription television receivers

Info

Publication number
GB1116102A
GB1116102A GB27800/65A GB2780065A GB1116102A GB 1116102 A GB1116102 A GB 1116102A GB 27800/65 A GB27800/65 A GB 27800/65A GB 2780065 A GB2780065 A GB 2780065A GB 1116102 A GB1116102 A GB 1116102A
Authority
GB
United Kingdom
Prior art keywords
reply
pulse
receiver
central station
cams
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
GB27800/65A
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.)
Zenith Electronics LLC
Original Assignee
Zenith Radio 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 Zenith Radio Corp filed Critical Zenith Radio Corp
Publication of GB1116102A publication Critical patent/GB1116102A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/17372—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream transmission being initiated or timed by a signal from upstream of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line

Abstract

1,116,102. Interrogating system for subscription television receivers. ZENITH RADIO CORPORATION. 30 June, 1965 [1 July, 1964], No. 27800/65. Heading G4H. A plurality of subscription television receivers are interrogated by a central station and send sequential reply pulses if they are switched on. The timing mechanism for the reply pulses comprises two switching cams 115, 116 (Fig. 2), with conductive segments 183, 184, the positioning of these segments being unique for each receiver. When a subscriber depresses a pushbutton 106, the motor is switched on and cams 115, 116 are rotated from the reference position shown until levers 131, 135 engage grooves 128, 139. A radio frequency converter 90 is simultaneously enabled so that a television programme from the central station is passed to a receiver 92, the interrogating pulse J being passed to a relay 181, which rotates levers 131, 135 to release the cams. When both the conductive segments fall between reply contacts 185, 186, and 187, 188 a reply pulse is sent to the central station where it energizes a punch magnet 64 (Fig. 1) in a tape punch 24 and illuminates a light 65. The tape punch is advanced between each reply pulse by a pulse generator 20 which also lights up a visual count display 28 to indicate which receiver is replying. If the reply pulse does not fall between two output pulses from the generator the receiver is disabled.
GB27800/65A 1964-07-01 1965-06-30 Interrogating system for subscription television receivers Expired GB1116102A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US379690A US3396232A (en) 1964-07-01 1964-07-01 Interrogating system for subscription television receivers

Publications (1)

Publication Number Publication Date
GB1116102A true GB1116102A (en) 1968-06-06

Family

ID=23498276

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27800/65A Expired GB1116102A (en) 1964-07-01 1965-06-30 Interrogating system for subscription television receivers

Country Status (2)

Country Link
US (1) US3396232A (en)
GB (1) GB1116102A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108335705A (en) * 2018-02-28 2018-07-27 辽宁东旭网络科技有限公司 A kind of long-range full automatic synchronization video and audio recording trial system

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769579A (en) * 1972-03-31 1973-10-30 Oak Electro Netics Corp Cable television monitoring system
US3882392A (en) * 1973-01-29 1975-05-06 Oak Industries Inc Hotel-motel pay TV system
US3997718A (en) * 1973-02-01 1976-12-14 The Magnavox Company Premium interactive communication system
US4163254A (en) * 1977-02-14 1979-07-31 Block Robert S Method and system for subscription television billing and access
JPS6276878A (en) * 1985-09-30 1987-04-08 Toshiba Corp Video scramble signal processor
US5341216A (en) * 1989-09-29 1994-08-23 Saskatchewan Telecommunications CATV channel access control and metering apparatus
US7502453B1 (en) 2000-08-02 2009-03-10 Cox Communications, Inc. Automated event ordering system and method
US8285814B2 (en) 2009-12-04 2012-10-09 Sling Media, Inc. Generation of data concerning reception of media content at a communication device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058065A (en) * 1956-11-07 1962-10-09 Nielsen A C Co System for determining listening habits of wave signal receiver users
US3172948A (en) * 1961-04-18 1965-03-09 Billing system for subscription television

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108335705A (en) * 2018-02-28 2018-07-27 辽宁东旭网络科技有限公司 A kind of long-range full automatic synchronization video and audio recording trial system

Also Published As

Publication number Publication date
US3396232A (en) 1968-08-06

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