[go: up one dir, main page]

JPS6478589A - Picture decoder - Google Patents

Picture decoder

Info

Publication number
JPS6478589A
JPS6478589A JP62236526A JP23652687A JPS6478589A JP S6478589 A JPS6478589 A JP S6478589A JP 62236526 A JP62236526 A JP 62236526A JP 23652687 A JP23652687 A JP 23652687A JP S6478589 A JPS6478589 A JP S6478589A
Authority
JP
Japan
Prior art keywords
data
register
output
code
loaded
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
JP62236526A
Other languages
Japanese (ja)
Inventor
Yoriyasu Takeguchi
Toshihide Akiyama
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62236526A priority Critical patent/JPS6478589A/en
Priority to EP88306679A priority patent/EP0300775B1/en
Priority to DE3853899T priority patent/DE3853899T2/en
Priority to US07/222,171 priority patent/US4953214A/en
Priority to KR1019880009095A priority patent/KR920003860B1/en
Publication of JPS6478589A publication Critical patent/JPS6478589A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

PURPOSE:To improve the efficiency in decoding a picture signal by comparing the change part of a picture signal with the evaluation function of a monotone decrease and using the code of a distance and a change direction between samples in the sample having a large changes as input data. CONSTITUTION:The data inputted from a data input terminal 1 is stored in a buffer memory 3, the data Di indicating a horizontal distance between the sample values in this data is loaded in a register 4 and further loaded to a down counter. The output of the register 4 is applied as the address of a ROM 5. The code Si of a displacement direction in the data is fed to an adder/ subtracter 8, when the code Si is positive the output of the register and the output of the ROM 5 are added and when it is negative, they are subtracted. The down counter 6 is counted down from the value Di loaded by a clock Fs added to a terminal 4, outputs a borrow signal at the time of 0, to update the value of a register 7 and maintain the output of the adder/subtracter 8 at that time.
JP62236526A 1987-07-21 1987-09-21 Picture decoder Pending JPS6478589A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62236526A JPS6478589A (en) 1987-09-21 1987-09-21 Picture decoder
EP88306679A EP0300775B1 (en) 1987-07-21 1988-07-20 Signal encoding and decoding method and device
DE3853899T DE3853899T2 (en) 1987-07-21 1988-07-20 Method and device for coding and decoding a signal.
US07/222,171 US4953214A (en) 1987-07-21 1988-07-21 Signal encoding and decoding method and device
KR1019880009095A KR920003860B1 (en) 1987-07-21 1988-07-21 Coding decoding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62236526A JPS6478589A (en) 1987-09-21 1987-09-21 Picture decoder

Publications (1)

Publication Number Publication Date
JPS6478589A true JPS6478589A (en) 1989-03-24

Family

ID=17001995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62236526A Pending JPS6478589A (en) 1987-07-21 1987-09-21 Picture decoder

Country Status (1)

Country Link
JP (1) JPS6478589A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659016A2 (en) * 1993-12-17 1995-06-21 Nippon Telegraph And Telephone Corporation Method and apparatus for video cut detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659016A2 (en) * 1993-12-17 1995-06-21 Nippon Telegraph And Telephone Corporation Method and apparatus for video cut detection
US5642294A (en) * 1993-12-17 1997-06-24 Nippon Telegraph And Telephone Corporation Method and apparatus for video cut detection

Similar Documents

Publication Publication Date Title
JPS5510586A (en) Electronic balance
JPS5697337A (en) Voice control camera
JPS5694269A (en) Digital display type vehicle speedometer
JPS6478589A (en) Picture decoder
KR910005570A (en) Programmable Subframe PWM Circuit
CA2072265A1 (en) Overflow detection system and its circuit for use in addition and subtraction
JPS56154819A (en) Waveform shaping circuit for digital signal
JPS6478588A (en) Picture encoder
JPS5750060A (en) Memory controlling circuit
JPS5634264A (en) Code detecting circuit
JPS5719869A (en) Input information processor
JPS56145402A (en) Sequence controller
JPS57106240A (en) Up/down counter circuit
JPS5773695A (en) Electronic timepiece with counter
JPS55139618A (en) Coding method
JPS54107641A (en) Data processor
JPS57140054A (en) Ami coding circuit
JPS57181223A (en) Frequency discriminator
JPS57208769A (en) Detecting system for significant picture element block
JPS5718181A (en) Digital clipping circuit
JPS5779552A (en) Data processor
JPS57169856A (en) Instruction execution system
JPS5513588A (en) Sampling circuit
JPS54138975A (en) Position pulse correcting circuit
JPS5444452A (en) Digital differentiation analyzer