CN1115777C - 移动电话用的基于只读存储器的有限脉冲响应滤波器 - Google Patents

移动电话用的基于只读存储器的有限脉冲响应滤波器 Download PDF

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Publication number
CN1115777C
CN1115777C CN97194884A CN97194884A CN1115777C CN 1115777 C CN1115777 C CN 1115777C CN 97194884 A CN97194884 A CN 97194884A CN 97194884 A CN97194884 A CN 97194884A CN 1115777 C CN1115777 C CN 1115777C
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China
Prior art keywords
signal
filter
memory cell
zero
input
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Expired - Lifetime
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CN97194884A
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Chinese (zh)
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CN1220058A (zh
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肯尼思·D·伊斯顿
彼得·J·布莱克
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Qualcomm Inc
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Qualcomm Inc
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0607—Non-recursive filters comprising a ROM addressed by the input data signals

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CN97194884A 1996-06-27 1997-06-23 移动电话用的基于只读存储器的有限脉冲响应滤波器 Expired - Lifetime CN1115777C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US672,205 1996-06-27
US08/672,205 US5870431A (en) 1996-06-27 1996-06-27 ROM-based finite impulse response filter for use in mobile telephone

Publications (2)

Publication Number Publication Date
CN1220058A CN1220058A (zh) 1999-06-16
CN1115777C true CN1115777C (zh) 2003-07-23

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Application Number Title Priority Date Filing Date
CN97194884A Expired - Lifetime CN1115777C (zh) 1996-06-27 1997-06-23 移动电话用的基于只读存储器的有限脉冲响应滤波器

Country Status (14)

Country Link
US (1) US5870431A (enExample)
EP (1) EP0908009B1 (enExample)
JP (2) JP2000514259A (enExample)
CN (1) CN1115777C (enExample)
AT (1) ATE474376T1 (enExample)
AU (1) AU717714B2 (enExample)
BR (1) BR9711599A (enExample)
CA (1) CA2254929C (enExample)
DE (1) DE69739935D1 (enExample)
MY (1) MY117766A (enExample)
RU (1) RU2189109C2 (enExample)
TW (1) TW338858B (enExample)
WO (1) WO1997050174A1 (enExample)
ZA (1) ZA975595B (enExample)

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US6768684B2 (en) * 2002-01-25 2004-07-27 Sun Microsystems, Inc. System and method for small read only data
US7986932B1 (en) * 2002-11-19 2011-07-26 National Semiconductor Corporation Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same
US20050201457A1 (en) * 2004-03-10 2005-09-15 Allred Daniel J. Distributed arithmetic adaptive filter and method
DE102004042368B4 (de) * 2004-09-01 2009-12-17 Infineon Technologies Ag Digitales Filter zur sendeseitigen Pulsformung
DE102005046245A1 (de) * 2005-09-28 2007-04-05 Atmel Germany Gmbh Vorrichtung zum Überführen eines komplexwertigen Bandpaßsignals in ein digitales Basisbandsignal
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
RU2399152C2 (ru) * 2008-03-12 2010-09-10 Государственное Образовательное Учреждение Высшего Профессионального Образования "Дагестанский Государственный Технический Университет" (Дгту) Универсальный цифровой фильтр с программируемой структурой
RU2410841C1 (ru) * 2009-11-19 2011-01-27 Геннадий Сергеевич Любчиков Способ вхождения в синхронизм псевдошумовых сигналов по задержке и устройство для его реализации
RU2403675C1 (ru) * 2009-11-19 2010-11-10 Геннадий Сергеевич Любчиков Устройство обработки множества псевдошумовых сигналов
RU2631976C2 (ru) * 2016-03-15 2017-09-29 Федеральное государственное бюджетное образовательное учреждение высшего образования Московский авиационный институт (национальный исследовательский университет) (МАИ) Перестраиваемый цифровой фильтр с программируемой структурой
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
EP3888256A4 (en) 2018-11-27 2022-08-31 Xcom Labs, Inc. NON-COHERENT COOPERATIVE MIMO COMMUNICATIONS
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
KR20230008750A (ko) 2020-04-15 2023-01-16 엑스콤 랩스 인코퍼레이티드 무선 네트워크 멀티포인트 연관 및 다양성
WO2022241436A1 (en) 2021-05-14 2022-11-17 XCOM Labs, Inc. Scrambling identifiers for wireless communication systems

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US4817025A (en) * 1984-02-03 1989-03-28 Sharp Kabushiki Kaisha Digital filter
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
SU1631706A1 (ru) * 1988-10-25 1991-02-28 Ереванский политехнический институт им.К.Маркса Последовательный цифровой фильтр
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JPH04270510A (ja) * 1990-12-28 1992-09-25 Advantest Corp ディジタルフィルタ及び送信機
BR9206143A (pt) * 1991-06-11 1995-01-03 Qualcomm Inc Processos de compressão de final vocal e para codificação de taxa variável de quadros de entrada, aparelho para comprimir im sinal acústico em dados de taxa variável, codificador de prognóstico exitado por córdigo de taxa variável (CELP) e descodificador para descodificar quadros codificados
US5369606A (en) * 1992-09-14 1994-11-29 Harris Corporation Reduced state fir filter
CA2485245C (en) * 1992-11-16 2009-06-16 Ceridian Corporation Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto
US5535150A (en) * 1993-04-20 1996-07-09 Massachusetts Institute Of Technology Single chip adaptive filter utilizing updatable weighting techniques
US5379242A (en) * 1993-09-01 1995-01-03 National Semiconductor Corporation ROM filter
US5586068A (en) * 1993-12-08 1996-12-17 Terayon Corporation Adaptive electronic filter
US5566101A (en) * 1995-08-15 1996-10-15 Sigmatel, Inc. Method and apparatus for a finite impulse response filter processor

Also Published As

Publication number Publication date
EP0908009B1 (en) 2010-07-14
WO1997050174A1 (en) 1997-12-31
ZA975595B (en) 1998-10-08
CA2254929C (en) 2005-06-14
ATE474376T1 (de) 2010-07-15
DE69739935D1 (de) 2010-08-26
JP2011259437A (ja) 2011-12-22
AU3500397A (en) 1998-01-14
RU2189109C2 (ru) 2002-09-10
JP5118234B2 (ja) 2013-01-16
TW338858B (en) 1998-08-21
MY117766A (en) 2004-08-30
CN1220058A (zh) 1999-06-16
CA2254929A1 (en) 1997-12-31
AU717714B2 (en) 2000-03-30
HK1020503A1 (en) 2000-05-05
BR9711599A (pt) 1999-08-24
US5870431A (en) 1999-02-09
EP0908009A1 (en) 1999-04-14
JP2000514259A (ja) 2000-10-24

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Address after: Holy land, California, Egypt

Patentee after: Qualcomm Inc.

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Granted publication date: 20030723

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