[특허]Matched filter spread spectrum code recovery apparatus

[미국특허] Matched filter spread spectrum code recovery apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/31
출원번호	US-0200827 (1980-10-27)
발명자 / 주소	Zscheile Jr. John W. (Murray UT)
출원인 / 주소	Sperry Corporation (New York NY 02)
인용정보	피인용 횟수 : 87 인용 특허 : 3

초록 ▼

Apparatus is provided for decreasing the acquisition time for recovering spread spectrum codes. The transmitted spread spectrum code is preceeded by a sync signal to establish system time at the receiver. The received coded data signals are applied to a matched filter or a delay line such as a surface acoustic wave device. The number of chips in the delay line is made an integral fraction of the number of chips in the word to be detected. The signals stored in the delay line are detected chip by chip as the coded data passes through the delay line. The resultant output analog signals from the delay line is digitized and stored chip by chip in a digital memory, such as a shift register, having the same chip storage capacity as the sequence group being transmitted. The values of chips in the digital storage memory are recirculated back to the input of an adder. A new value for the same chip of the word is generated as a new digitized output in the delay line device, and is added in the adder to the value recirculated from the storage memory. In this manner, the peak outputs from the delay line, which are occurring at a unique or particular chip position, are enhanced so that the unique chip position in the coded data word is identified.

대표청구항 ▼

Apparatus for receiving and decoding a transmitted coded message where the coded message is a modulated signal comprising a multibit data word converted into a spread spectrum code having a unique sequence of chips preceded by a sync signal and where the unique sequence of chips define a plurality of identical sequence groups each representative of said multibit data word, the combination comprising: means for receiving said sync signal and said sequence groups of chips, means for processing said sync signal and said groups of chips coupled to said receiving means to provide a time base signal and processed chips, a tapped delay line device coupled to said sync signal and said processed chips, said tapped delay line device having a chip length sufficient to accommodate one sequence group, means for detecting the output of said tapped delay line device at each chip time, means for converting the detected output of said tapped delay line device to a digital value at each chip time, shift register means coupled to said converting means being adapted to store said digital values at each chip time in the order of detection, logic means comprising a plurality of counters and maximum value detector means, said logic means being coupled to the output of said shift register means for detecting said sync signal and starting said plurality of counters, one of said counters being adapted to keep a sequence group count and another of said counters being adapted to keep a chip position count as said digital values are shifted through said shift register means, adder means connected to said converting means and to said shift register means for summing the digital value of the output of said device at each chip time with the digital value stored in said shift register means representative of the same chip time of the previously detected sequence group, and said maximum value detector means in said logic means coupled to the output of said shift register means for detecting the chip position in said sequence group having the largest digital value stored in said shift register means, whereby the largest digital value chip position in said sequence group is indicative of a unique multibit data word.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Campbell Russell (Kanata CAX), Interleaved binary coded signal translation device.
상세보기
Caples Edgar L. (Garland TX) Marston Robert K. (Plano TX) Massad Khalil E. (Richardson TX), Multipath diversity spread spectrum receiver.
상세보기
Newton Cleland O. (Malvern Wells GB2) Paige Edward G. S. (Horton-com-Studley GB2), Surface acoustic wave time chirp devices.
상세보기

이 특허를 인용한 특허 (87) 인용/피인용 타임라인 분석

Olmstead David (8000 Rachelle Pl. Vienna VA 22182-4022), Adaptive data rate packet communications system.
상세보기
Davidovici Sorin ; Kanterakis Emmanuel, Apparatus and method for synchronization of direct sequence CDMA signals.
상세보기
Durrant Randolph L. ; Burbach Mark, Apparatus for receiving and correlating a spread spectrum signal.
상세보기
Dixon Robert C. (Palmer Lake CO) Vanderpool Jeffrey S. (Colorado Springs CO), Asymmetric spread spectrum correlator.
상세보기
Donald L. Schilling, Broadband CDMA overlay system and method.
상세보기
Schilling Donald L., Broadband CDMA overlay system and method.
상세보기
Schilling,Donald L., Broadband CDMA overlay system and method.
상세보기
Lomp Gary R. (Centerport NY) La Vean Gilbert (Reston VA) Schilling Donald L. (Sands Point NY), CDMA cellular hand-off apparatus and method.
상세보기
Donald L. Schilling, CDMA communications and geolocation system and method.
상세보기
Schilling Donald L., CDMA communications and geolocation system and method.
상세보기
Zscheile ; Jr. John W. (Farmington UT) Lundquist Alan E. (Salt Lake City UT) Spencer Bellie M. (Bountiful UT), Code lengthening system.
상세보기
Jensen Ryan N. ; Lindsay Charles L. ; Williams Claude M., Communication protocol for spread spectrum wireless communication system.
상세보기
Ham Wilhelmus J. (Huizen NLX) Nagelhout Jacob T. (Huizen NLX), Communication system.
상세보기
Anderson Gary B. ; Gavette Sherman ; Lindsay Charles L. ; Jensen Ryan N., Communication system and method.
상세보기
Motamedi Masoud (Gaithersburg MD), Detection of burst signal transmissions.
상세보기
Logan Scott, Efficient communication system using time division multiplexing and timing adjustment control.
상세보기
Scott Logan, Efficient communication system using time division multiplexing and timing adjustment control.
상세보기
Scott Logan (Breckenridge CO), Efficient frequency division duplex communication system with interleaved format and timing adjustment control.
상세보기
Scott Logan, Efficient time division duplex communication system with interleaved format and timing adjustment control.
상세보기
Nossen Edward J. (Cherry Hill NJ), Fast frequency/code search.
상세보기
Schilling, Donald L., High capacity spread spectrum channel.
상세보기
Hennedy Michael ; Davidovici Sorin, Intelligent power management for a programmable matched filter.
상세보기
Hennedy Michael ; Davidovici Sorin, Intelligent power management for a programmable matched filter.
상세보기
Anderson, Gary B.; Petch, Bryan K.; Peterson, Peter O.; Jensen, Ryan N.; Gavette, Sherman, Method and Apparatus for wireless spread spectrum communication with preamble processing period.
상세보기
Durrant Randolph L. ; Burbach Mark, Method and apparatus for coherent correlation of a spread spectrum signal.
상세보기
Durrant Randolph L. ; Burbach Mark, Method and apparatus for coherent serial correlation of a spread spectrum signal.
상세보기
Durrant Randolph L. ; Burbach Mark, Method and apparatus for correlating a continuous phase modulated spread spectrum signal.
상세보기
Gold Robert ; Dixon Robert C., Method and apparatus for despreading spread spectrum signals.
상세보기
Durrant Randolph L. (Colorado Springs CO) Burbach Mark T. (Peyton CO) Hoyt Eugene P. (Colorado Springs CO), Method and apparatus for differential phase encoding and decoding in spread-spectrum communication systems with continuo.
상세보기
Dixon Robert C. ; Vanderpool Jeffrey S., Method and apparatus for establishing spread spectrum communication.
상세보기
Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Method and apparatus for noncoherent reception and correlation of a continous phase modulated signal.
상세보기
Durrant Randolph L. ; Burbach Mark, Method and apparatus for parallel noncoherent correlation of a spread spectrum signal.
상세보기
Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchr.
상세보기
Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal.
상세보기
Durrant Randolph L. ; Burbach Mark, Method and apparatus for wireless spread spectrum communication with preamble sounding gap.
상세보기
Anderson Gary B. ; Peterson Peter O., Method and system for data link expansion or contraction using spread spectrum TDMA communication.
상세보기
Anderson Gary B. ; Petch Bryan K. ; Peterson Peter O. ; Jensen Ryan N. ; Gavette Sherman, Method and system for mobile controlled handoff and link maintenance in spread spectrum communication.
상세보기
Cabib Dario,ILX, Method for remote sensing analysis be decorrelation statistical analysis and hardware therefor.
상세보기
Essam Sourour ; Gregory E. Bottomley ; R. David Koilpillai, Modulation sequence synchronization methods and apparatus employing partial sequence correlation.
상세보기
Durrant Randolph L. (Colorado Springs CO) Burbach Mark T. (Peyton CO), Multi-bit correlation of continuous phase modulated signals.
상세보기
Li Don ; Yang Gang, Multi-channel spread spectrum system.
상세보기
Li,Don; Yang,Gang, Multi-channel spread spectrum system.
상세보기
Anderson, Gary B.; Jensen, Ryan N.; Petch, Bryan K.; Peterson, Peter O., PCS pocket phone/microcell communication over-air protocol.
상세보기
Schilling Donald L. (Sands Point NY), Polyopoly overlapping spread spectrum communication system and method.
상세보기
Logan Scott, Preamble code structure and detection method and apparatus.
상세보기
Logan Scott ; Robert Monroe, Preamble code structure and detection method and apparatus.
상세보기
Scott Logan, Preamble code structure and detection method and apparatus.
상세보기
Scott Logan ; Monroe Robert, Preamble code structure and detection method and apparatus.
상세보기
Scott Logan ; Monroe Robert, Preamble code structure and detection method and apparatus.
상세보기
Davidovici Sorin, Programmable two-part matched filter for spread spectrum.
상세보기
Davidovici Sorin (Jackson Heights NY), Programmable two-part matched filter for spread spectrum.
상세보기
Schilling Donald L. ; Garodnick Joseph ; Lomp Gary ; Moore ; III Timothy F., Spread spectrum adaptive power control communications system and method.
상세보기
Schilling, Donald L., Spread spectrum adaptive power control communications system and method.
상세보기
Schilling, Donald L., Spread spectrum base station.
상세보기
Anderson Gary B. ; Peterson Peter O. ; Smith Douglas G. ; Dixon Robert C., Spread spectrum communication system.
상세보기
Chandler Donald G. (Princeton NJ) Nossen Steve J. (Somerset NJ) Simpson Raymond W. (Hamilton Square NJ), Spread spectrum communication system.
상세보기
Schilling,Donald L., Spread spectrum communication system and method using a reference signal and a plurality of message signals.
상세보기
Smith Douglas G. ; Dixon Robert C., Spread spectrum communication system using DECT protocol.
상세보기
Smith, Douglas G.; Dixon, Robert C., Spread spectrum communication system using DECT protocol.
상세보기
Schilling,Donald L., Spread spectrum communications using a reference and a message signal system and method.
상세보기
Scott Logan, Spread spectrum correlation using saw device.
상세보기
Dixon Robert C. (Palmer Lake CO) Vanderpool Jeffrey S. (Colorado Springs CO), Spread spectrum correlator.
상세보기
Schilling, Donald L., Spread spectrum remote unit.
상세보기
Durrant Randy (Colorado Springs CO) Burbach Mark (Peyton CO), Spread spectrum transmitter.
상세보기
Gold Robert ; Dixon Robert C., Spread spectrum transmitter and communications system using multiple spreading codes.
상세보기
Jeffrey S. Vanderpool, Spread spectrum wireless communication system.
상세보기
Vanderpool, Jeffrey S., Spread spectrum wireless communication system.
상세보기
Vanderpool,Jeffrey S., Spread spectrum wireless communication system.
상세보기
Vanderpool Jeffrey S., Spread spectrum wireless telephone system.
상세보기
Vanderpool Jeffrey S., Spread spectrum wireless telephone system.
상세보기
Smith Douglas G. ; Dixon Robert C. ; Vanderpool Jeffrey S., Spread-spectrum data publishing system.
상세보기
Tran Jimmy Cuong ; Davidovici Sorin, Symbol-matched filter having a low silicon and power requirement.
상세보기
Durrant Randolph L. (Colorado Springs CO) Burbach Mark (Peyton CO), Synchronization apparatus and method for spread spectrum receiver.
상세보기
Pinkney, John, System and apparatus for detecting interference in radio bands.
상세보기
Dixon Robert C., Three cell wireless communication system.
상세보기
Dixon Robert C. (Palmer Lake CO), Three-cell wireless communication system.
상세보기
Logan Scott, Timing adjustment control for efficient time division duplex communication.
상세보기
Scott Logan, Timing adjustment control for efficient time division duplex communication.
상세보기
Scott Logan, Timing adjustment control for efficient time division duplex, frequency division duplex or hybrid time division duplex/frequency division duplex communication.
상세보기
Sorin Davidovici ; Emmanuel Kanterakis, Two-stage synchronization of spread-spectrum signals.
상세보기
Arthur James D. (Costa Mesa CA) Sanderford ; Jr. H. Britton (New Orleans LA) Rouquette Robert E. (Kenner LA), Wireless alarm system.
상세보기
Arthur James D. (Costa Mesa CA) Sanderford ; Jr. H. Britton (New Orleans LA) Rouquette Robert E. (Kenner LA), Wireless alarm system.
상세보기
Sanderford H. Britton ; Rouquette Robert E. ; Arthur James D., Wireless alarm system.
상세보기
Dixon,Robert C., Wireless cellular communication system.
상세보기
Dixon,Robert C.; Vanderpool,Jeffrey S., Wireless communication method and apparatus.
상세보기
Anderson Gary B. ; Jensen Ryan N. ; Petch Bryan K. ; Peterson Peter O., Wireless communication method and system.
상세보기
Anderson Gary B. ; Petch Bryan K. ; Peterson Peter O. ; Jensen Ryan N. ; Gavette Sherman, Wireless communication system and method.
상세보기

활용도 분석정보

상세보기

다운로드

내보내기

활용도 Top5 특허

해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

[미국특허] Matched filter spread spectrum code recovery apparatus 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (87) 인용/피인용 타임라인 분석

활용도 분석정보

활용도 Top5 특허

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

[미국특허] Matched filter spread spectrum code recovery apparatus 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (87) 인용/피인용 타임라인 분석

활용도 분석정보

활용도 Top5 특허 더보기

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

활용도 Top5 특허