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특허 상세정보

Device and method for correcting a data error in communication path

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H04L-005/12   
미국특허분류(USC) 375/265; 375/245; 375/264; 375/279; 375/280; 370/468
출원번호 US-0581667 (2004-12-07)
등록번호 US-8498355 (2013-07-30)
우선권정보 JP-2003-409688 (2003-12-08)
국제출원번호 PCT/JP2004/018536 (2004-12-07)
§371/§102 date 20060605 (20060605)
국제공개번호 WO2005/055542 (2005-06-16)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Robinson, Eric J.
인용정보 피인용 횟수 : 0  인용 특허 : 23
초록

There are provided a transmission and reception device having a function for correcting a data error in a communication path. In the transmission device, a redundant bit addition unit adds a redundant bit to each data bit which has been divided by one bit by a division unit; and an interleaver performs interleave. The transmission device transmits a signal which has been subjected to FM modulation by an FM modulation unit. In the reception device, a symbol decision unit performs a symbol decision at a Nyquist point for a signal which has been FM-demodula...

대표
청구항

1. A transmission device which modulates and transmits transmission data of which a level of importance has been previously determined, comprising: a division unit configured to divide (1) a high-importance data string by one bit to generate high-importance bit data each having one bit and (2) a low-importance data string into low-importance bit data each having two bits;a bit addition unit configured to add a fixed value of one bit to each one bit of the high-importance bit data, to generate two bit high-importance bit data; anda modulation unit configu...

이 특허에 인용된 특허 (23)

  1. Rydbeck Nils R. C. (Vildanden J101 22234 Lund SW) Sundberg Carl-Erik Wilhelm (Vildanden C506 22234 Lund SW). Adaptive error correcting transmission system. USP1977094047151.
  2. Tanaka Kenya (Kawasaki JPX) Yokota Yasuhiro (Kawasaki JPX). Code transmission system and portable pager in radio paging system. USP1997105677681.
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  5. Wakatsuki Yoshio (Tokyo JPX) Takeuchi Hajime (Tokyo JPX) Shimizu Giichiro (Tokyo JPX). FSK demodulating device. USP1990014897857.
  6. Persson Paul M. (Flintvgen 20 S-175 61 Jrflla SEX). Information transmitting system. USP1981074277778.
  7. Vermesse Bernard (L\Hay les Roses FRX). Limited write non-volatile memory and a franking machine making use thereof. USP1991014984191.
  8. Thapar Hemant K. (Marlboro NJ). Method and apparatus for coding a binary signal. USP1985084534040.
  9. Dehner ; Jr. Leo G. (Boynton Beach FL) Ayerst Douglas I. (Delray Beach FL) Carsello Stephen R. (Boynton Beach FL). Method and apparatus for minimizing false detection of packet data in a communication receiver. USP1995125473612.
  10. Frodigh Carl Magnus,SEX ; Hook Mikael,SEX ; Muller Frank,SEX ; Schramm Peter,DEX ; Skold Johan,SEX. Method for demodulating information in a communication system that supports multiple modulation schemes. USP2000096125148.
  11. Todoroki Toshiya (Tokyo JPX). Method of and system for data transmission employing trellis coded modulation. USP1995105457705.
  12. Suzuki Yoshifumi,JPX ; Shirato Tadashi,JPX. Modulation and demodulation method, modulator and demodulator. USP1998105818875.
  13. Chung Hong Y. (Eatontown NJ) Wang Jin-Der (Ocean NJ) Wei Lee-Fang (Lincroft NJ). Multiplexed coded modulation with unequal error protection. USP1993055214656.
  14. Kushita Masayuki,JPX. Network for transmitting information data without error correction when a transmission channel quality is good, or with. USP1998115835508.
  15. Fox David A. (Shawnee Township ; Allen County OH). Position detector utilizing gray code format. USP1990024901072.
  16. Tada Ken-ichi,JPX. Quaternary FSK receiver and method of judging signals in quaternary FSK receiver. USP2001056232906.
  17. Mizuki, Takayuki; Ohashi, Setsuya; Yamao, Yasushi; Ito, Shogo. Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic. USP2003016512748.
  18. Mobley Joseph G. (Dunwoody GA) Kozushin Anatoly (Duluth GA) Baher Saeed (Atlanta GA) Addison Steve (Atlanta GA) Paulk Howard (Woodstock GA) Farmer James (Doraville GA). Scrambling of signals by inversion. USP1989124888799.
  19. Carsello Stephen R. (Boynton Beach FL). Selective call receiving device with improved symbol decoding and automatic frequency control. USP1996105566213.
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  21. Dent, Paul W.. Systems and methods for communicating spread spectrum signals using variable signal constellations. USP2005086934317.
  22. Hanson Merle E. (Livermore CA) Titchener Paul F. (Menlo Park CA) Hamberlin Clifford W. (Kingwood TX). Tool and combined tool support and casing section for use in transmitting data up a well. USP1986104616702.
  23. Beigel Michael L. ; Malm Robert E.. Universal electronic identification tag. USP2001066249212.