ATE374974T1 - Verfahren ind vorrichtung zur durchfuehrung einer schnellen hadamard transform - Google Patents

Verfahren ind vorrichtung zur durchfuehrung einer schnellen hadamard transform

Info

Publication number
ATE374974T1
ATE374974T1 AT95904955T AT95904955T ATE374974T1 AT E374974 T1 ATE374974 T1 AT E374974T1 AT 95904955 T AT95904955 T AT 95904955T AT 95904955 T AT95904955 T AT 95904955T AT E374974 T1 ATE374974 T1 AT E374974T1
Authority
AT
Austria
Prior art keywords
symbol
delayed processed
input
hadamard transform
processed symbol
Prior art date
Application number
AT95904955T
Other languages
English (en)
Inventor
Houtan Dehesh
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE374974T1 publication Critical patent/ATE374974T1/de

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/145—Square transforms, e.g. Hadamard, Walsh, Haar, Hough, Slant transforms

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Hardware Redundancy (AREA)
AT95904955T 1993-12-22 1994-12-20 Verfahren ind vorrichtung zur durchfuehrung einer schnellen hadamard transform ATE374974T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/173,460 US5561618A (en) 1993-12-22 1993-12-22 Method and apparatus for performing a fast Hadamard transform

Publications (1)

Publication Number Publication Date
ATE374974T1 true ATE374974T1 (de) 2007-10-15

Family

ID=22632139

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95904955T ATE374974T1 (de) 1993-12-22 1994-12-20 Verfahren ind vorrichtung zur durchfuehrung einer schnellen hadamard transform

Country Status (18)

Country Link
US (1) US5561618A (de)
EP (1) EP0736205B1 (de)
JP (1) JP3245171B2 (de)
KR (1) KR100253987B1 (de)
CN (1) CN1103084C (de)
AT (1) ATE374974T1 (de)
AU (1) AU683526B2 (de)
BR (1) BR9408414A (de)
CA (1) CA2179758C (de)
DE (1) DE69435034T2 (de)
FI (1) FI120017B (de)
IL (1) IL112056A0 (de)
MY (1) MY113296A (de)
RU (1) RU2150141C1 (de)
SG (1) SG47106A1 (de)
TW (1) TW255076B (de)
WO (1) WO1995017727A1 (de)
ZA (1) ZA948425B (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987012A (en) * 1996-12-19 1999-11-16 Motorola, Inc. Method of handing off and a wireless communication device
US5920549A (en) * 1996-12-19 1999-07-06 Motorola, Inc. Method of handing off and a wireless communication device
US6148219A (en) * 1997-02-18 2000-11-14 Itt Manufacturing Enterprises, Inc. Positioning system for CDMA/PCS communications system
US6148195A (en) * 1997-02-18 2000-11-14 Itt Manufacturing Enterprises, Inc. Phase agile antenna for use in position determination
US5938787A (en) * 1997-03-27 1999-08-17 Ericsson Inc. Communications systems and methods employing code rate partitioning with nonorthogonal modulation
US5872774A (en) * 1997-09-19 1999-02-16 Qualcomm Incorporated Mobile station assisted timing synchronization in a CDMA communication system
CN1149499C (zh) * 1997-11-17 2004-05-12 索尼电子有限公司 用于采用离散变换进行数字视频数据压缩的方法和系统
US6639906B1 (en) 1997-12-09 2003-10-28 Jeffrey A. Levin Multichannel demodulator
US6028889A (en) * 1998-02-25 2000-02-22 Lucent Technologies, Inc. Pipelined fast hadamard transform
US6201827B1 (en) 1998-09-09 2001-03-13 Qualcomm Incorporated System and method for probability based lock detection
US6229841B1 (en) 1998-12-11 2001-05-08 Qualcomm Incorporated Method and apparatus for energy estimation in a wireless receiver capable of receiving multiple instances of a common signal
US6130923A (en) * 1998-12-11 2000-10-10 Qualcomm Incorporated Lock detection for multipath wireless receiver
US6311202B1 (en) * 1999-03-12 2001-10-30 Lucent Technologies Inc. Hardware efficient fast hadamard transform engine
US6735610B1 (en) * 1999-04-29 2004-05-11 Walter E. Pelton Apparatus, methods, and computer program products for determining the coefficients of a function with decreased latency
EP1236086A2 (de) * 1999-12-10 2002-09-04 Broadcom Corporation Vorrichtung und verfahren zur datengenauigkeitsverminderung
JP3716695B2 (ja) * 1999-12-24 2005-11-16 日本電気株式会社 高速アダマール変換器
US6895421B1 (en) 2000-10-06 2005-05-17 Intel Corporation Method and apparatus for effectively performing linear transformations
US20020191603A1 (en) * 2000-11-22 2002-12-19 Yeshik Shin Method and system for dynamic segmentation of communications packets
US6985516B1 (en) 2000-11-27 2006-01-10 Qualcomm Incorporated Method and apparatus for processing a received signal in a communications system
WO2002069514A1 (en) * 2001-02-27 2002-09-06 Samsung Electronics Co., Ltd Apparatus and method for coding/decoding tfci bits in an asynchronous cdma communication system
US6996292B1 (en) * 2002-04-18 2006-02-07 Sandia Corporation Staring 2-D hadamard transform spectral imager
US7003536B2 (en) * 2002-08-15 2006-02-21 Comsys Communications & Signal Processing Ltd. Reduced complexity fast hadamard transform
US6996163B2 (en) * 2003-03-27 2006-02-07 Arraycomm, Inc. Walsh-Hadamard decoder
KR100577005B1 (ko) * 2003-12-27 2006-05-10 한국전자통신연구원 고속 하다마드 변환 및 고속 푸리에 변환의 선택적 수행장치 및 방법
KR100711088B1 (ko) * 2005-04-13 2007-04-24 광주과학기술원 동화상 인코더를 위한 정수 변환 장치
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US20080109507A1 (en) * 2006-10-23 2008-05-08 L3 Communications Integrated Systems, L.P. System and method for performing an optimized discrete walsh transform
US11037069B1 (en) 2020-01-17 2021-06-15 Tegze P. Haraszti Method for creating gates and circuits for greatly improved computing apparatus by using symbol transformer

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792355A (en) * 1970-12-11 1974-02-12 Hitachi Ltd Orthogonal transformation circuit using hadamard matrices
US3899667A (en) 1972-12-26 1975-08-12 Raytheon Co Serial three point discrete fourier transform apparatus
US3956619A (en) * 1975-03-31 1976-05-11 General Electric Company Pipeline walsh-hadamard transformations
US4210931A (en) * 1978-12-28 1980-07-01 Discovision Associates Video player and/or recorder with Hadamard transform
JPS5737925A (en) * 1980-08-14 1982-03-02 Matsushita Electric Ind Co Ltd High-speed hadamard converter
US4621337A (en) * 1983-08-11 1986-11-04 Eastman Kodak Company Transformation circuit for implementing a collapsed Walsh-Hadamard transform
SU1265795A1 (ru) * 1984-08-02 1986-10-23 Ордена Ленина Институт Кибернетики Им.В.М.Глушкова Устройство быстрого преобразовани сигналов по Уолшу с упор дочением по Адамару
SU1462355A1 (ru) * 1987-06-26 1989-02-28 Московский институт электронной техники Устройство дл преобразовани Адамара цифровой последовательности
JP2574312B2 (ja) * 1987-07-24 1997-01-22 松下電器産業株式会社 高速アダマ−ル変換装置
SU1536398A1 (ru) * 1988-04-25 1990-01-15 Институт Технической Кибернетики Ан Бсср Устройство дл быстрого преобразовани Уолша-Адамара
US5097331A (en) * 1990-08-24 1992-03-17 Bell Communications Research, Inc. Multiple block-size transform video coding using an asymmetric sub-band structure
KR960703305A (ko) * 1994-04-25 1996-06-19 이데이 노부유키 영상 신호 출력 장치 (Video signal output apparatus)

Also Published As

Publication number Publication date
US5561618A (en) 1996-10-01
MY113296A (en) 2002-01-31
FI120017B (fi) 2009-05-29
IL112056A0 (en) 1995-03-15
CA2179758A1 (en) 1995-06-29
SG47106A1 (en) 1998-03-20
ZA948425B (en) 1995-06-29
WO1995017727A1 (en) 1995-06-29
TW255076B (de) 1995-08-21
JP3245171B2 (ja) 2002-01-07
EP0736205B1 (de) 2007-10-03
HK1011100A1 (en) 1999-07-02
CN1103084C (zh) 2003-03-12
CN1138382A (zh) 1996-12-18
EP0736205A1 (de) 1996-10-09
CA2179758C (en) 2001-04-03
FI962573A0 (fi) 1996-06-20
RU2150141C1 (ru) 2000-05-27
AU683526B2 (en) 1997-11-13
DE69435034T2 (de) 2008-07-03
FI962573A7 (fi) 1996-08-20
AU1375295A (en) 1995-07-10
BR9408414A (pt) 1997-08-05
KR100253987B1 (ko) 2000-04-15
DE69435034D1 (de) 2007-11-15
JPH09510805A (ja) 1997-10-28

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