JPS6484992A - Transmission and reception system for television signal - Google Patents

Transmission and reception system for television signal

Info

Publication number
JPS6484992A
JPS6484992A JP62026275A JP2627587A JPS6484992A JP S6484992 A JPS6484992 A JP S6484992A JP 62026275 A JP62026275 A JP 62026275A JP 2627587 A JP2627587 A JP 2627587A JP S6484992 A JPS6484992 A JP S6484992A
Authority
JP
Japan
Prior art keywords
frequency
luminance signal
circuit
limited
band
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
JP62026275A
Other languages
Japanese (ja)
Other versions
JP2539407B2 (en
Inventor
Shigemitsu Higuchi
Akira Shibata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62026275A priority Critical patent/JP2539407B2/en
Publication of JPS6484992A publication Critical patent/JPS6484992A/en
Application granted granted Critical
Publication of JP2539407B2 publication Critical patent/JP2539407B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Color Television Systems (AREA)

Abstract

PURPOSE:To improve largely picture quality by frequency-converting a high frequency luminance signal exceeding the transmission band width by a specific frequency and multiplexing the high frequency luminance signal onto a television signal in the transmission band. CONSTITUTION:A luminance signal Y and color difference signals I, Q are outputted from a matrix 101. A prescribed band is limited to the signals I, Q by LPFs 102, 103 and the spread of a vector is limited by band limit circuits 104, 105, orthogonal modulation is applied by an orthogonal modulation circuit 107 to form a chrominance carrier signal. On the other hand, components below 4.2MHz in the luminance signal Y passes through an LPF 106 and is fed to an adder circuit 108. A high frequency luminance signal YH exceeding 4.2MHz is extracted by a BPF 111 and the spread of the spectrum is limited by a band limit circuit 112 and subjected to frequency modulation by a balanced modulation circuit 113 and a BPF 114. Thus, the signals YH and Y are superimposed on each other. In this case, the carrier frequency mu0 to the circuit 113 is to be selected as an integral number of multiple of the horizontal synchronizing frequency fH.
JP62026275A 1987-02-09 1987-02-09 Television signal transmitter, recorder, receiver Expired - Fee Related JP2539407B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62026275A JP2539407B2 (en) 1987-02-09 1987-02-09 Television signal transmitter, recorder, receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62026275A JP2539407B2 (en) 1987-02-09 1987-02-09 Television signal transmitter, recorder, receiver

Publications (2)

Publication Number Publication Date
JPS6484992A true JPS6484992A (en) 1989-03-30
JP2539407B2 JP2539407B2 (en) 1996-10-02

Family

ID=12188733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62026275A Expired - Fee Related JP2539407B2 (en) 1987-02-09 1987-02-09 Television signal transmitter, recorder, receiver

Country Status (1)

Country Link
JP (1) JP2539407B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067018A (en) * 1989-06-07 1991-11-19 Kabushiki Kaisha Toshiba Frequency-division multiplexing arrangement for preventing interference between a main television signal and a helper signal thereof
US5093986A (en) * 1990-02-05 1992-03-10 Murata Manufacturing Co., Ltd. Method of forming bump electrodes
US5227879A (en) * 1990-01-26 1993-07-13 Tokyo Broadcasting System Inc. Apparatus for transmitting an extended definition TV signal having compatibility with a conventional TV system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062284A (en) * 1983-09-14 1985-04-10 Hitachi Ltd Frequency shifting circuit
JPS62250790A (en) * 1986-04-24 1987-10-31 Nippon Hoso Kyokai <Nhk> Television signal multiplexing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6062284A (en) * 1983-09-14 1985-04-10 Hitachi Ltd Frequency shifting circuit
JPS62250790A (en) * 1986-04-24 1987-10-31 Nippon Hoso Kyokai <Nhk> Television signal multiplexing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067018A (en) * 1989-06-07 1991-11-19 Kabushiki Kaisha Toshiba Frequency-division multiplexing arrangement for preventing interference between a main television signal and a helper signal thereof
US5227879A (en) * 1990-01-26 1993-07-13 Tokyo Broadcasting System Inc. Apparatus for transmitting an extended definition TV signal having compatibility with a conventional TV system
US5093986A (en) * 1990-02-05 1992-03-10 Murata Manufacturing Co., Ltd. Method of forming bump electrodes

Also Published As

Publication number Publication date
JP2539407B2 (en) 1996-10-02

Similar Documents

Publication Publication Date Title
EP0296827A3 (en) Colour video signal reproducing apparatus
JPS594287A (en) Color television transmission system
JPS6484992A (en) Transmission and reception system for television signal
US4873567A (en) Extended horizontal resolution of luminance and chrominance in a high definition television system
JPS54116834A (en) Transmission system for color television signal
ES8206946A1 (en) Circuit arrangement for separating the components of a PAL color television signal
JPS57160287A (en) Processing circuit for carrier wave chrominance signal
JPS56119593A (en) Processing device of color video signal
GB2013066A (en) Colour video signal reproducing system
AU636636B2 (en) A method of subcarrier multiplication which preserves am information in fm systems
JPS555518A (en) False signal suppression circuit for color pick up unit
JPS53140926A (en) Television receiver
JPS573478A (en) Equalizing circuit for amplitude distortion
KR0140694B1 (en) High resolution image signal decoding circuit
EP0374128A3 (en) Method of transmitting and receiving color television signals on two channels for broadcasting from satellite and apparatus for carrying out said method
ES8500697A1 (en) System for processing colour television signals, particularly of the SECAM type.
JPS6441393A (en) Three-dimensional luminance and chrominance signal separation picture equipment
JPS5377421A (en) Color picture transmission systm
JPH01154673A (en) Television offset beat removing device
JPS5260518A (en) Television system for voice communication
JP2791018B2 (en) High-definition information band inversion modulation / demodulation method
GB1474632A (en) Colour television programme distribution using a multi-pair cable
JPS5353921A (en) Multiplex transmitting system for color television signal
JPS55121786A (en) Color television signal transmission system
GB768682A (en) Improvements in and relating to wired broadcasting of colour television

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees