JPS54150905A - Decoding device - Google Patents

Decoding device

Info

Publication number
JPS54150905A
JPS54150905A JP5961478A JP5961478A JPS54150905A JP S54150905 A JPS54150905 A JP S54150905A JP 5961478 A JP5961478 A JP 5961478A JP 5961478 A JP5961478 A JP 5961478A JP S54150905 A JPS54150905 A JP S54150905A
Authority
JP
Japan
Prior art keywords
code word
output
rom
code
symbol
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
JP5961478A
Other languages
Japanese (ja)
Inventor
Yutaka Ueno
Takayoshi Semasa
Fumitaka Ono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5961478A priority Critical patent/JPS54150905A/en
Publication of JPS54150905A publication Critical patent/JPS54150905A/en
Pending legal-status Critical Current

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Landscapes

  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

PURPOSE: To realize a big reduction of the necessary ROM capacity by receiving the output of the counter circuit and then selecting either one of plural units of ROM through the reading selection signal generation control circuit.
CONSTITUTION: Code memory register 6 contains the smaller bit number than the maximum symbol number of the code word which supplies in series and delivers in parallel the symbol series of the code, and counts 9 the symbol number of the codes after the break of the code word. Here, ROM7a and 7b possess the 1st output showing whether or not the code word is formed with the final symbol of the signal supplied to register 6 and the 2nd output showing the information corresponding to the code word formed. Receiving the output of counter circuit 9, selection signal generation control circuit 10 selects ROM7a or 7b. Thus, the necessary capacity of ROM can be reduced greatly.
COPYRIGHT: (C)1979,JPO&Japio
JP5961478A 1978-05-18 1978-05-18 Decoding device Pending JPS54150905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5961478A JPS54150905A (en) 1978-05-18 1978-05-18 Decoding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5961478A JPS54150905A (en) 1978-05-18 1978-05-18 Decoding device

Publications (1)

Publication Number Publication Date
JPS54150905A true JPS54150905A (en) 1979-11-27

Family

ID=13118293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5961478A Pending JPS54150905A (en) 1978-05-18 1978-05-18 Decoding device

Country Status (1)

Country Link
JP (1) JPS54150905A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150035A (en) * 1981-03-11 1982-09-16 Fujitsu Ltd Code converting circuit system
JPS6156522A (en) * 1984-07-28 1986-03-22 Fujitsu Ltd Variable length dpcm decoding circuit
JPS6266720A (en) * 1985-09-18 1987-03-26 Nec Corp Variable length code decoding circuit
JPS62157425A (en) * 1985-12-18 1987-07-13 アドバンスト・マイクロ・デイバイシズ・インコ−ポレ−テツド Apparatus for converting series data pattern signal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57150035A (en) * 1981-03-11 1982-09-16 Fujitsu Ltd Code converting circuit system
JPS6332292B2 (en) * 1981-03-11 1988-06-29 Fujitsu Ltd
JPS6156522A (en) * 1984-07-28 1986-03-22 Fujitsu Ltd Variable length dpcm decoding circuit
JPS6266720A (en) * 1985-09-18 1987-03-26 Nec Corp Variable length code decoding circuit
JPS62157425A (en) * 1985-12-18 1987-07-13 アドバンスト・マイクロ・デイバイシズ・インコ−ポレ−テツド Apparatus for converting series data pattern signal

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