ATE474376T1 - Lesespeichergestütztes filter mit eindlicher impulsantwort für mobiltelefon - Google Patents

Lesespeichergestütztes filter mit eindlicher impulsantwort für mobiltelefon

Info

Publication number
ATE474376T1
ATE474376T1 AT97931357T AT97931357T ATE474376T1 AT E474376 T1 ATE474376 T1 AT E474376T1 AT 97931357 T AT97931357 T AT 97931357T AT 97931357 T AT97931357 T AT 97931357T AT E474376 T1 ATE474376 T1 AT E474376T1
Authority
AT
Austria
Prior art keywords
filter
signals
values
fir filter
antipodal
Prior art date
Application number
AT97931357T
Other languages
German (de)
English (en)
Inventor
Kenneth Easton
Peter Black
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 ATE474376T1 publication Critical patent/ATE474376T1/de

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AT97931357T 1996-06-27 1997-06-23 Lesespeichergestütztes filter mit eindlicher impulsantwort für mobiltelefon ATE474376T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/672,205 US5870431A (en) 1996-06-27 1996-06-27 ROM-based finite impulse response filter for use in mobile telephone
PCT/US1997/010925 WO1997050174A1 (en) 1996-06-27 1997-06-23 Rom-based finite impulse response filter for use in mobile telephone

Publications (1)

Publication Number Publication Date
ATE474376T1 true ATE474376T1 (de) 2010-07-15

Family

ID=24697582

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97931357T ATE474376T1 (de) 1996-06-27 1997-06-23 Lesespeichergestütztes filter mit eindlicher impulsantwort für mobiltelefon

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)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
TW369648B (en) * 1996-09-02 1999-09-11 Koninkl Philips Electronics Nv Device for write compensation in magnetic media recording
US6628722B1 (en) 1998-06-19 2003-09-30 Lucent Technologies Inc. Decoding technique in discrete multi-tone (DMT) based communications systems
CN1076917C (zh) * 1998-09-11 2001-12-26 华为技术有限公司 码分多址扩频无线通信系统基站的基带成形滤波器
US6570907B1 (en) * 1999-10-04 2003-05-27 Ericsson Inc. Simplified finite impulse response (FIR) digital filter for direct sequencespread spectrum communication
US6731706B1 (en) * 1999-10-29 2004-05-04 Intel Corporation Square root raised cosine symmetric filter for mobile telecommunications
KR100378592B1 (ko) 2000-07-31 2003-03-31 한국전자통신연구원 디지털 이동 통신용 108 탭 1대4 인터폴레이션유한임펄스응답 필터장치
US7068780B1 (en) * 2000-08-30 2006-06-27 Conexant, Inc. Hybrid echo canceller
SE520067C2 (sv) * 2000-09-04 2003-05-20 Hans Haellstroem Anordning och förfarande för att uppskatta parametrar i en signal
US6820103B2 (en) 2000-11-03 2004-11-16 Qualcomm Inc. Digital filter with state storage
EP1239640B1 (en) * 2000-12-20 2004-05-06 Motorola, Inc. Quadrature modulator with programmable pulse shaping
KR100425418B1 (ko) * 2001-09-07 2004-03-30 삼성탈레스 주식회사 룩업 테이블을 이용한 블록 보간 필터 구조
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
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
AU2019388921B2 (en) 2018-11-27 2024-05-30 Virewirx, Inc. Non-coherent cooperative multiple-input multiple-output communications
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
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
AU2021256985A1 (en) 2020-04-15 2022-11-10 Virewirx, Inc. Wireless network multipoint association and diversity
WO2022241436A1 (en) 2021-05-14 2022-11-17 XCOM Labs, Inc. Scrambling identifiers for wireless communication systems

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551816A (en) * 1970-12-28 1985-11-05 Hyatt Gilbert P Filter display system
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
ATE294441T1 (de) * 1991-06-11 2005-05-15 Qualcomm Inc Vocoder mit veränderlicher bitrate
US5369606A (en) * 1992-09-14 1994-11-29 Harris Corporation Reduced state fir filter
PT688487E (pt) * 1992-11-16 2005-02-28 Arbitron Inc Metodo e aparelho para codificacao/descodificacao de segmentos transmitidos ou gravados e monitorizacao da exposilcao da audiencia aos mesmos
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
CA2254929A1 (en) 1997-12-31
HK1020503A1 (en) 2000-05-05
EP0908009A1 (en) 1999-04-14
TW338858B (en) 1998-08-21
US5870431A (en) 1999-02-09
JP2000514259A (ja) 2000-10-24
CN1220058A (zh) 1999-06-16
JP5118234B2 (ja) 2013-01-16
BR9711599A (pt) 1999-08-24
RU2189109C2 (ru) 2002-09-10
EP0908009B1 (en) 2010-07-14
ZA975595B (en) 1998-10-08
CN1115777C (zh) 2003-07-23
AU3500397A (en) 1998-01-14
JP2011259437A (ja) 2011-12-22
DE69739935D1 (de) 2010-08-26
CA2254929C (en) 2005-06-14
MY117766A (en) 2004-08-30
AU717714B2 (en) 2000-03-30
WO1997050174A1 (en) 1997-12-31

Similar Documents

Publication Publication Date Title
ATE474376T1 (de) Lesespeichergestütztes filter mit eindlicher impulsantwort für mobiltelefon
AU514328B2 (en) Digital filter and demodulator for quarternary signals
ES8106384A1 (es) Un convertidor digital a analogico que utiliza modulacion sigmadelta para sistemas telefonicos
FI961841A7 (fi) Kvadratuuridesimaatioasteella varustettu vastaanotin, menetelmä digitaalisten signaalien prosessoimiseksi
FI101667B1 (fi) Digitaalinen radioliikennejärjestelmä ja radiopuhelin
ES8201378A1 (es) Sistema de comunicacion digital
GB1504897A (en) Method for through connection check in digital data systems
WO1998025343A3 (en) Floating point digital transversal filter
ES542847A0 (es) Un conmutador digital de central de derivacion privada, capaz de transmision de senales vocales y de datos.
SE0003645D0 (sv) Voice communication between a portable communication apparatus and an external terminal
EP0386908A3 (en) Pcm communication system
IT7825754A0 (it) Disposizione circuitale per convertire segnali analogici, specie segnali pam, in segnali digitali, specie in segnali pcm,nonche' per convertire segnali digitali in segnali analogici.
JPS5686569A (en) Telephone set of composite service
FR2326823A1 (fr) Procede et dispositif pour le traitement de trames de reception dans une chaine de parole d'une unite de raccordement d'abonnes dans un central de telecommunications
YAO Communication methods[Final Report, 1972- 1976]
DE3750814D1 (de) Schaltung für digitale impulse.
JPS5435604A (en) Ringing system of push-button telephone set
CA2193154A1 (en) Circuit and Method for Reducing Common Mode Interference in Telephone Instruments
RU93031320A (ru) Концентратор автоматический телефонный
DE MEUX Data transmission on secondary groups(modem and multiplexer design for PCM telephone system)
JPS579156A (en) Connecting system for telephone device
ATE308853T1 (de) Abzweigfilter für datenübertragungsstrecke
ES268413U (es) Acoplador acustico perfeccionado.
ATE90823T1 (de) Schaltungsanordnung zum entzerren von in analoger form empfangener digitalsignale.
NO901660L (no) Eliminasjonskrets for transiente signaler, til bruk innentelekommunikasjon.

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties