JPS55127778A - Terminal control unit of catv system - Google Patents

Terminal control unit of catv system

Info

Publication number
JPS55127778A
JPS55127778A JP3493279A JP3493279A JPS55127778A JP S55127778 A JPS55127778 A JP S55127778A JP 3493279 A JP3493279 A JP 3493279A JP 3493279 A JP3493279 A JP 3493279A JP S55127778 A JPS55127778 A JP S55127778A
Authority
JP
Japan
Prior art keywords
circuit
power source
transmission circuit
original
data
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
JP3493279A
Other languages
Japanese (ja)
Other versions
JPS622758B2 (en
Inventor
Kazuyoshi Onda
Masayuki Saito
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP3493279A priority Critical patent/JPS55127778A/en
Publication of JPS55127778A publication Critical patent/JPS55127778A/en
Publication of JPS622758B2 publication Critical patent/JPS622758B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reduce power consumption by providing an original oscillator, which is always operated, a transmission circuit which is normally stopped and is operated only at need, and a power source circuit for this transmission circuit.
CONSTITUTION: Terminal 10 transfers call to power source control circuit 35 when call from the center comes. Then, power source part 34 and transmission circuit 36 are connected by this call. Power is always supplied to original oscillator 39 to cause original oscillator 39 to hold a stable original oscillation frequency previously, and stable transmission can be performed immediately by connection of the power source to transmission circuit 36. Meanwhile, data indicating a channel of current receiving is stored in I/O part 32 through connector 33 previously, and is inputted to frequency division modulating circuit 37 through I/O part 32 when polling is received. Circuit 37 not only sets the original oscillation wave to a carrier frequency but also modulates the original oscillation wave with up data signal b to send data to data transmission circuit 38. Then, data is sent to the center.
COPYRIGHT: (C)1980,JPO&Japio
JP3493279A 1979-03-24 1979-03-24 Terminal control unit of catv system Granted JPS55127778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3493279A JPS55127778A (en) 1979-03-24 1979-03-24 Terminal control unit of catv system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3493279A JPS55127778A (en) 1979-03-24 1979-03-24 Terminal control unit of catv system

Publications (2)

Publication Number Publication Date
JPS55127778A true JPS55127778A (en) 1980-10-02
JPS622758B2 JPS622758B2 (en) 1987-01-21

Family

ID=12427961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3493279A Granted JPS55127778A (en) 1979-03-24 1979-03-24 Terminal control unit of catv system

Country Status (1)

Country Link
JP (1) JPS55127778A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04188923A (en) * 1990-11-21 1992-07-07 Sharp Corp Light receiving element and information equipment using the same
JPH04188922A (en) * 1990-11-21 1992-07-07 Sharp Corp Optical coupler and information equipment using the same
JPH04188924A (en) * 1990-11-21 1992-07-07 Sharp Corp Optical coupler and information equipment using the same
US8893177B1 (en) 1981-11-03 2014-11-18 {Personalized Media Communications, LLC Signal processing apparatus and methods

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9674560B1 (en) 1981-11-03 2017-06-06 Personalized Media Communications LLC Signal processing apparatus and methods
US8893177B1 (en) 1981-11-03 2014-11-18 {Personalized Media Communications, LLC Signal processing apparatus and methods
US8973034B1 (en) 1981-11-03 2015-03-03 Personalized Media Communications LLC Signal processing apparatus and methods
US9038124B1 (en) 1981-11-03 2015-05-19 Personalized Media Communications, Llc Signal processing apparatus and methods
US10334292B1 (en) 1981-11-03 2019-06-25 Personalized Media Communications LLC Signal processing apparatus and methods
US10523350B1 (en) 1981-11-03 2019-12-31 Personalized Media Communications LLC Signal processing apparatus and methods
USRE47867E1 (en) 1981-11-03 2020-02-18 Personalized Media Communications LLC Signal processing apparatus and methods
US10609425B1 (en) 1981-11-03 2020-03-31 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US10616638B1 (en) 1981-11-03 2020-04-07 Personalized Media Communications LLC Signal processing apparatus and methods
US10715835B1 (en) 1981-11-03 2020-07-14 John Christopher Harvey Signal processing apparatus and methods
JPH04188922A (en) * 1990-11-21 1992-07-07 Sharp Corp Optical coupler and information equipment using the same
JPH04188924A (en) * 1990-11-21 1992-07-07 Sharp Corp Optical coupler and information equipment using the same
JPH04188923A (en) * 1990-11-21 1992-07-07 Sharp Corp Light receiving element and information equipment using the same

Also Published As

Publication number Publication date
JPS622758B2 (en) 1987-01-21

Similar Documents

Publication Publication Date Title
JPS5444801A (en) Radio inter-call receiver
JPS6460026A (en) Transmission line switching device for communication equipment
JPS55127778A (en) Terminal control unit of catv system
JPS5392603A (en) Line branching unit
JPS5627584A (en) Two-way communication unit
JPS5359185A (en) Remote control signal system
JPS57159131A (en) Power supply system in mobile radio set
MY104835A (en) Color display system
ES8503463A1 (en) Portable electronic video recording system.
JPS5538702A (en) Detection system for procedure interruption signal
JPS53107214A (en) Radio transmission-reception system
JPS53138631A (en) Still picture transmission system
JPS5493936A (en) Data communication system
JPS5520084A (en) Carrier current supply system
JPS5496906A (en) Telephone set for both pb and dp signals
JPS54162905A (en) Radiotelephony equipment
JPS5537013A (en) Facsimile device
JPS567547A (en) Polling response system
JPS5781776A (en) Facsimile equipment
JPS56149154A (en) Transmission system for information on power failure
JPS5315703A (en) Semi-double data communication system
JPS5742212A (en) Mic module
JPS52135619A (en) Input unit
JPS6473851A (en) Terminal connection identifying system
JPS56120240A (en) Line switcher