JPS54118809A - Signal equalizing system - Google Patents

Signal equalizing system

Info

Publication number
JPS54118809A
JPS54118809A JP2575078A JP2575078A JPS54118809A JP S54118809 A JPS54118809 A JP S54118809A JP 2575078 A JP2575078 A JP 2575078A JP 2575078 A JP2575078 A JP 2575078A JP S54118809 A JPS54118809 A JP S54118809A
Authority
JP
Japan
Prior art keywords
signal
information
test pattern
period
signals
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.)
Pending
Application number
JP2575078A
Other languages
Japanese (ja)
Inventor
Seishi Kageyama
Masaaki Kato
Keiji Takeuchi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2575078A priority Critical patent/JPS54118809A/en
Publication of JPS54118809A publication Critical patent/JPS54118809A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve reproduction information quality by adjusting the tap gain of an equalizer only in the test pattern signal period inserted in the false television signal by the multileveled compressed information signal of detection codes.
CONSTITUTION: Information such as voice, etc. is written as multiplexed time- division signals in a memory 4 and when the read-out speed of the memory 4 is controlled, the information signals are compressed. If error detection codes such as CRC or the like are added to this redundancy part by a redundancy addition circuit 5 and are made to the multi-scale signals by a binary-multiscale conversion circuit 6, the recording density decreased substantially. A synthesizing circuit 8 adds the horizontal synchronizing signal from a synchronizing signal generating circuit 9 and the binary test pattern signal from an equalizing pattern generator 10 to the information signal to generate the false TV signal including the information signal in each horizontal synchronizing signal and including the test pattern at the horizontal period of the specified number. If this signal is recorded and reproduced and the tap gain of the transversal filter is adjusted only in the test pattern period, the high quality information signal is reproduced through the accurate error detection and waveform equalizing.
COPYRIGHT: (C)1979,JPO&Japio
JP2575078A 1978-03-07 1978-03-07 Signal equalizing system Pending JPS54118809A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2575078A JPS54118809A (en) 1978-03-07 1978-03-07 Signal equalizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2575078A JPS54118809A (en) 1978-03-07 1978-03-07 Signal equalizing system

Publications (1)

Publication Number Publication Date
JPS54118809A true JPS54118809A (en) 1979-09-14

Family

ID=12174498

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2575078A Pending JPS54118809A (en) 1978-03-07 1978-03-07 Signal equalizing system

Country Status (1)

Country Link
JP (1) JPS54118809A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894221A (en) * 1981-11-30 1983-06-04 Sony Corp Separating filter
JPH02108317A (en) * 1988-10-18 1990-04-20 Matsushita Electric Ind Co Ltd Automatic equalizing circuit
JP2010288314A (en) * 2007-10-17 2010-12-24 Avago Technologies Fiber Ip (Singapore) Pte Ltd Adaptive equalizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894221A (en) * 1981-11-30 1983-06-04 Sony Corp Separating filter
JPH029755B2 (en) * 1981-11-30 1990-03-05 Sony Corp
JPH02108317A (en) * 1988-10-18 1990-04-20 Matsushita Electric Ind Co Ltd Automatic equalizing circuit
JP2010288314A (en) * 2007-10-17 2010-12-24 Avago Technologies Fiber Ip (Singapore) Pte Ltd Adaptive equalizer

Similar Documents

Publication Publication Date Title
EP0343930A2 (en) Data signal processing apparatus
JPS52102014A (en) Signal processing apparatus
JPS57150285A (en) Magnetic recording system of sound signal and recording and reproducing system
JPS5733409A (en) Reproducer of coded signal
JPS527701A (en) Acoustic characteristic corrector
JPS54118809A (en) Signal equalizing system
JPS54157027A (en) Video reproducing device
JPS5321908A (en) Phase control circuit for video tape recorder
JPS522403A (en) Signal processing circuit for obtaining recording signal for disc reco rd free from generation of tracing distortion at the time of reproduct ion
JPS53149012A (en) Digital signal recording and reproducing system
JPS55129913A (en) Digital recording and reproducing system
JPS5591276A (en) Magnetic recorder/reproducer
JPS5547780A (en) Recording and reproducing unit for video format signal
JPS5528547A (en) Magnetic recorder/reproducer
JPS54109815A (en) Recorder-reproducer of video signal
JPS54109413A (en) Pcm type recording and reproducing method
JPS52147920A (en) Signal processing circuit
JPS55105871A (en) Editing device for pcm signal
JPS5222824A (en) Picture signal recording method
JPS5384705A (en) Signal reproducing system
JPS51139315A (en) Apparatus of reproducing information
JPS5390717A (en) Digital recording/reproducing system for picture signal
JPS53116106A (en) Removal method of interference distortion produced in demodulated signals by inteference of fm wave signals to themselves in recording and reproducing system of mu-tichannel disc records
JPS54109412A (en) Compandor circuit for signals
JPS53148316A (en) Recording media for reproducing still picture and slow motion picture enabling also to reproduce audio signal