JPS6424634A - Variable length encoder - Google Patents

Variable length encoder

Info

Publication number
JPS6424634A
JPS6424634A JP62179937A JP17993787A JPS6424634A JP S6424634 A JPS6424634 A JP S6424634A JP 62179937 A JP62179937 A JP 62179937A JP 17993787 A JP17993787 A JP 17993787A JP S6424634 A JPS6424634 A JP S6424634A
Authority
JP
Japan
Prior art keywords
difference
variable length
differential
section
subtractor
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
JP62179937A
Other languages
Japanese (ja)
Inventor
Takahiro Hosokawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62179937A priority Critical patent/JPS6424634A/en
Publication of JPS6424634A publication Critical patent/JPS6424634A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To always maintain the transmission efficiency at maximum regardless of the status of data by inserting a difference correction part and an operation part between a differential coding section and a variable length coding section. CONSTITUTION:A differential correction section 21 consists of a delay circuit (DL) 31 and a subtractor 32. The subtractor 32 applies the subtraction to obtain a difference between a difference DELTAL and a mean value outputted from an arithmetic section 22. Thus, a shortest code is assigned to a differential data with the high frequency of occurrence at all times.
JP62179937A 1987-07-21 1987-07-21 Variable length encoder Pending JPS6424634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62179937A JPS6424634A (en) 1987-07-21 1987-07-21 Variable length encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62179937A JPS6424634A (en) 1987-07-21 1987-07-21 Variable length encoder

Publications (1)

Publication Number Publication Date
JPS6424634A true JPS6424634A (en) 1989-01-26

Family

ID=16074544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62179937A Pending JPS6424634A (en) 1987-07-21 1987-07-21 Variable length encoder

Country Status (1)

Country Link
JP (1) JPS6424634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03119865A (en) * 1989-09-30 1991-05-22 Minolta Camera Co Ltd Image data compression device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03119865A (en) * 1989-09-30 1991-05-22 Minolta Camera Co Ltd Image data compression device

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