JPS5619507A - Coding system - Google Patents

Coding system

Info

Publication number
JPS5619507A
JPS5619507A JP9544879A JP9544879A JPS5619507A JP S5619507 A JPS5619507 A JP S5619507A JP 9544879 A JP9544879 A JP 9544879A JP 9544879 A JP9544879 A JP 9544879A JP S5619507 A JPS5619507 A JP S5619507A
Authority
JP
Japan
Prior art keywords
bit
cycle
circuit
input
output
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
JP9544879A
Other languages
Japanese (ja)
Other versions
JPS6243269B2 (en
Inventor
Shigeyuki Kawarabayashi
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 JP9544879A priority Critical patent/JPS5619507A/en
Publication of JPS5619507A publication Critical patent/JPS5619507A/en
Publication of JPS6243269B2 publication Critical patent/JPS6243269B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Abstract

PURPOSE: To suppress the production of DC component, by performing the code conversion to the 1/2 cycle bit of binary data of bits in cycle T with the specific system, if required, relating to the MFM coding system.
CONSTITUTION: With the MFM coding circuit 11, the binary data 0, 1 of bit in cycle T are respectively converted to 11, 00 or 10, 01 of cycle 1/2T and output via the buffer circuit 14. In this input binary data, when it is decided at the decision circuit 12 that the number of consecutive 1s is an even number and only the most and least significant bits are 0, the AND gate 5a is opened, the least significant bit of the input data, the 2-bit of the next position, and 1-bit data output from the circuit 14 are address signal via the serial-input-parallel output conversion circuit 10. ROM16 is accessed and conversion is made with specific system via the parallel input-serial output conversion circuit, and the code of bit in 1/2 cycle without DC component can be produced.
COPYRIGHT: (C)1981,JPO&Japio
JP9544879A 1979-07-24 1979-07-24 Coding system Granted JPS5619507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9544879A JPS5619507A (en) 1979-07-24 1979-07-24 Coding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9544879A JPS5619507A (en) 1979-07-24 1979-07-24 Coding system

Publications (2)

Publication Number Publication Date
JPS5619507A true JPS5619507A (en) 1981-02-24
JPS6243269B2 JPS6243269B2 (en) 1987-09-12

Family

ID=14137967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9544879A Granted JPS5619507A (en) 1979-07-24 1979-07-24 Coding system

Country Status (1)

Country Link
JP (1) JPS5619507A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983965A (en) * 1988-12-09 1991-01-08 Hitachi, Ltd. Demodulation apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01300164A (en) * 1988-05-26 1989-12-04 Daikin Ind Ltd Heat pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4983965A (en) * 1988-12-09 1991-01-08 Hitachi, Ltd. Demodulation apparatus

Also Published As

Publication number Publication date
JPS6243269B2 (en) 1987-09-12

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