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특허 상세정보

Selective call receiving device with improved symbol decoding and automatic frequency control

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H03L-007/00    H04L-007/00    H04B-001/06   
미국특허분류(USC) 375/344 ; 375/340 ; 375/345
출원번호 US-0401467 (1995-03-09)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 32  인용 특허 : 0
초록

A selective call receiving device (10) includes a signal decoder that utilizes both a peak and valley routine and a stochastic gradient feedback route for processing a received signal. The peak and valley routine is operable prior to the detection of a predetermined synchronization word in the received signal to detect the peak and valley of a received signal and to generated based on detected peak and valley, a DC offset correction value for correcting the received signal prior to symbol decoding. A number of threshold values are also generated based on...

대표
청구항

In a selective call receiving device, a decoder for decoding a signal received by the device, said signal representing a plurality of symbols and at least one group of said symbols forming a predetermined synchronization word, said signal decoder comprising: a symbol decoder for decoding symbols from a received signal utilizing at least one correction value to correct said received signal, said symbol decoder generating a feedback error associated with a decoded symbol; a synchronization word detector for detecting said predetermined synchronization word...

이 특허를 인용한 특허 피인용횟수: 32

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  8. Ho Kenneth Yiu-Kwong ; Parker Kenneth W.. Code division multiple access system with dynamic histogram control. USP2000106128353.
  9. Eaton, Eric Thomas; Hayes, David Jeffery; Mock, Von Alan. Communication device utilizing channel based oscillator aging compensation and method therefor. USP2004036704556.
  10. Shan,Peijun. DC offset correction using multiple configurable feedback loops. USP2009037505744.
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  18. Powell ; II Clinton C ; Webster James Rodney. Frequency shift modulation automatic frequency correction circuit and method. USP2000106130921.
  19. DeLuca Michael J.. Method and apparatus for acquiring peak and valley values of a signal received by a radio communication device. USP1999075930307.
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  21. Chevrette, Joel; Rosset, Fabienne. Method for determining the sampling phase and method for synchronization word detection using the phase detection method. USP2005016847694.
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  23. McKinny Carol A. (Delray Beach FL) Rausch Christopher B. (Boynton Beach FL) Oliboni Mark L. (Boynton Beach FL) Whitaker Mark R. (Pflugerville TX) Babcock Mark H. (Austin TX) Hoang Tuan S. (Austin TX). Peak and valley detector for a selective call receiving device. USP1997055627860.
  24. Lee,Jae Hyuk. Predistortion digital linearizer and gain controlling method thereof. USP2006127145962.
  25. Sudo, Shigeyuki; Hasegawa, Osamu; Eguchi, Toshiya. Receiver for receiving a spectrum dispersion signal. USP2012038130816.
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  30. Majima, Taichi. Scrambler, scramble processing method, and program. USP2013018363826.
  31. Fant, Andrea; Sant, Luca; Torta, Patrick Vernei. Square wave signal component cancellation. USP2013018358164.
  32. Seo, II Won; Ahn, Jae Hwan. Timing recovery methods and apparatuses. USP2009087579970.