JPS6478543A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
JPS6478543A
JPS6478543A JP62235997A JP23599787A JPS6478543A JP S6478543 A JPS6478543 A JP S6478543A JP 62235997 A JP62235997 A JP 62235997A JP 23599787 A JP23599787 A JP 23599787A JP S6478543 A JPS6478543 A JP S6478543A
Authority
JP
Japan
Prior art keywords
bbc
data
transmission data
block
error
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
JP62235997A
Other languages
Japanese (ja)
Other versions
JP2651156B2 (en
Inventor
Hideki Hashikura
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62235997A priority Critical patent/JP2651156B2/en
Publication of JPS6478543A publication Critical patent/JPS6478543A/en
Application granted granted Critical
Publication of JP2651156B2 publication Critical patent/JP2651156B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To reduce residual error rate at the time of re-transmitting by dividing data into plural blocks at the time of re-transmitting the data in case an error occurrs, and providing a check code for each block. CONSTITUTION:In a transmission sattion 1, a circuit 3 for setting the format of transmission data sets the format of transmission data. Also, a BBC calculation circuit 4 executes the calculation of block check code (BBC). In the mean time, a response judging circuit 6 detects the occurrence of an error in a response from a reception station 2. In the station 2, a BBC checking circuit 5 checks a received BBC, then returns to the station 1 a signal representing whether an error occurrs or not. In the event of an error with this constitution, A block of transmission data in the normal operation is divided into N-pieces of divisions to generate blocks of re-transmission data. For each re-transmission data block, a BBC is provided. As a result, residual error rate is reduced, and the re-transmission of data can be exactly executed.
JP62235997A 1987-09-19 1987-09-19 Data transmission method Expired - Fee Related JP2651156B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62235997A JP2651156B2 (en) 1987-09-19 1987-09-19 Data transmission method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235997A JP2651156B2 (en) 1987-09-19 1987-09-19 Data transmission method

Publications (2)

Publication Number Publication Date
JPS6478543A true JPS6478543A (en) 1989-03-24
JP2651156B2 JP2651156B2 (en) 1997-09-10

Family

ID=16994272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235997A Expired - Fee Related JP2651156B2 (en) 1987-09-19 1987-09-19 Data transmission method

Country Status (1)

Country Link
JP (1) JP2651156B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008048325A (en) * 2006-08-21 2008-02-28 Fujitsu Ltd Wireless communication device
JP2008053854A (en) * 2006-08-22 2008-03-06 Fujitsu Ltd Data retransmission method, communication apparatus, and computer program
WO2009008062A1 (en) * 2007-07-10 2009-01-15 Mitsubishi Electric Corporation Transmitter apparatus and communication system
WO2009016837A1 (en) * 2007-07-31 2009-02-05 Panasonic Corporation Wireless communication device and retransmission judging method
JP2010022049A (en) * 2009-10-19 2010-01-28 Fujitsu Ltd Retransmission method for data, and communication device
JP2014182645A (en) * 2013-03-19 2014-09-29 Toshiba Corp Ic card, portable electronic device and ic card processor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5164308A (en) * 1974-07-26 1976-06-03 Fuji Photo Film Co Ltd Deetadensoayamariseigyohoho
JPS5921149A (en) * 1982-07-27 1984-02-03 Toshiba Corp Variable block length retransmitting device
JPS62159540A (en) * 1986-01-07 1987-07-15 Nec Corp Frame transmission equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5164308A (en) * 1974-07-26 1976-06-03 Fuji Photo Film Co Ltd Deetadensoayamariseigyohoho
JPS5921149A (en) * 1982-07-27 1984-02-03 Toshiba Corp Variable block length retransmitting device
JPS62159540A (en) * 1986-01-07 1987-07-15 Nec Corp Frame transmission equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008048325A (en) * 2006-08-21 2008-02-28 Fujitsu Ltd Wireless communication device
JP2008053854A (en) * 2006-08-22 2008-03-06 Fujitsu Ltd Data retransmission method, communication apparatus, and computer program
WO2009008062A1 (en) * 2007-07-10 2009-01-15 Mitsubishi Electric Corporation Transmitter apparatus and communication system
US8875004B2 (en) 2007-07-10 2014-10-28 Mitsubishi Electric Corporation Transmitting apparatus and communication system
WO2009016837A1 (en) * 2007-07-31 2009-02-05 Panasonic Corporation Wireless communication device and retransmission judging method
JP2010022049A (en) * 2009-10-19 2010-01-28 Fujitsu Ltd Retransmission method for data, and communication device
JP2014182645A (en) * 2013-03-19 2014-09-29 Toshiba Corp Ic card, portable electronic device and ic card processor

Also Published As

Publication number Publication date
JP2651156B2 (en) 1997-09-10

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees