JPS5612185A - Chargeable television system of independent synchronizing type on radio system - Google Patents

Chargeable television system of independent synchronizing type on radio system

Info

Publication number
JPS5612185A
JPS5612185A JP8757979A JP8757979A JPS5612185A JP S5612185 A JPS5612185 A JP S5612185A JP 8757979 A JP8757979 A JP 8757979A JP 8757979 A JP8757979 A JP 8757979A JP S5612185 A JPS5612185 A JP S5612185A
Authority
JP
Japan
Prior art keywords
signal
reset
mode
radio
timing
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
JP8757979A
Other languages
Japanese (ja)
Other versions
JPS622754B2 (en
Inventor
Akimori Tomizawa
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion Co Ltd
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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP8757979A priority Critical patent/JPS5612185A/en
Publication of JPS5612185A publication Critical patent/JPS5612185A/en
Publication of JPS622754B2 publication Critical patent/JPS622754B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to perform accurate demodulation at a reception side by adding a reset pulse for synchronization to a coded video signal.
CONSTITUTION: An encoded signal generator is reset at timing T1 and timing T2 of reset signals from a reset signal generator and then makes a specific change in mode in accordance with a vertical synchronizing signal. Mode signal (b) is brought under reset control and, after T1 and T2, makes a specific change like mode signal (d). A video processor performs encoding by mode signal (d). To the encoded video signal, a reset signal for synchronizing control is added by a mixer. The video signal with the added reset signal is transmitted by radio. At a reception side, the reset signal is detected and demodulation is carried out.
COPYRIGHT: (C)1981,JPO&Japio
JP8757979A 1979-07-11 1979-07-11 Chargeable television system of independent synchronizing type on radio system Granted JPS5612185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8757979A JPS5612185A (en) 1979-07-11 1979-07-11 Chargeable television system of independent synchronizing type on radio system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8757979A JPS5612185A (en) 1979-07-11 1979-07-11 Chargeable television system of independent synchronizing type on radio system

Publications (2)

Publication Number Publication Date
JPS5612185A true JPS5612185A (en) 1981-02-06
JPS622754B2 JPS622754B2 (en) 1987-01-21

Family

ID=13918904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8757979A Granted JPS5612185A (en) 1979-07-11 1979-07-11 Chargeable television system of independent synchronizing type on radio system

Country Status (1)

Country Link
JP (1) JPS5612185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501982A (en) * 1981-11-19 1983-11-17 コミユニケ−シヨンズ・サテライト・コ−ポレ−シヨン Protection device for subscriber satellite television encryption
JPH01112883A (en) * 1987-10-26 1989-05-01 Fujitsu Ltd Radio type charged television system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58501982A (en) * 1981-11-19 1983-11-17 コミユニケ−シヨンズ・サテライト・コ−ポレ−シヨン Protection device for subscriber satellite television encryption
JPH01112883A (en) * 1987-10-26 1989-05-01 Fujitsu Ltd Radio type charged television system

Also Published As

Publication number Publication date
JPS622754B2 (en) 1987-01-21

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