JPS6436234A - Spread spectrum communication system - Google Patents

Spread spectrum communication system

Info

Publication number
JPS6436234A
JPS6436234A JP62192217A JP19221787A JPS6436234A JP S6436234 A JPS6436234 A JP S6436234A JP 62192217 A JP62192217 A JP 62192217A JP 19221787 A JP19221787 A JP 19221787A JP S6436234 A JPS6436234 A JP S6436234A
Authority
JP
Japan
Prior art keywords
packet
section
error correction
check sum
reception
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
JP62192217A
Other languages
Japanese (ja)
Inventor
Seiji Mori
Masahiro Hamatsu
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.)
Faurecia Clarion Electronics Co Ltd
Original Assignee
Clarion 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 Clarion Co Ltd filed Critical Clarion Co Ltd
Priority to JP62192217A priority Critical patent/JPS6436234A/en
Publication of JPS6436234A publication Critical patent/JPS6436234A/en
Pending legal-status Critical Current

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  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To improve the transmission efficiency while enhancing the error correction capability by constituting each packet by plural blocks in processing a digital data to be sent as a packet by a packet composition control section and providing at least a text section and a check sum section to each block. CONSTITUTION:In converting the transmission data into a packet data by a packet composition control section 2, the data is constituted by plural blocks each comprising a text section and a check sum section. Since the test section of each block is short, a short check sum length is enough even when a high error detection and correction capability is given by a packet decomposition control section of a reception modem. Through the constitution of the packet format shown in figure, since the IC on market is used for the error correction of the packet decomposition control section, the reception section is constituted inexpensively. Moreover, the similar error correction capability to that of the long text section with a long check sum section is obtained. Even when the error correction is not processed excellently at the reception side, it is not required to resend the entire packet, and only the block corrected correctly as the result of reception and then stored, and when all the blocks are arranged, the packet is received correctly.
JP62192217A 1987-07-31 1987-07-31 Spread spectrum communication system Pending JPS6436234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62192217A JPS6436234A (en) 1987-07-31 1987-07-31 Spread spectrum communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62192217A JPS6436234A (en) 1987-07-31 1987-07-31 Spread spectrum communication system

Publications (1)

Publication Number Publication Date
JPS6436234A true JPS6436234A (en) 1989-02-07

Family

ID=16287609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62192217A Pending JPS6436234A (en) 1987-07-31 1987-07-31 Spread spectrum communication system

Country Status (1)

Country Link
JP (1) JPS6436234A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016044A1 (en) * 1995-10-24 1997-05-01 Ntt Mobile Communications Network Inc. Retransmission control method for cdma mobile communication
JPH10263162A (en) * 1998-05-01 1998-10-06 Sankyo Kk Game machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997016044A1 (en) * 1995-10-24 1997-05-01 Ntt Mobile Communications Network Inc. Retransmission control method for cdma mobile communication
JPH10263162A (en) * 1998-05-01 1998-10-06 Sankyo Kk Game machine

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