ZA975595B - Rom-based finite impulse response filter for use in mobile telephone - Google Patents

Rom-based finite impulse response filter for use in mobile telephone

Info

Publication number
ZA975595B
ZA975595B ZA975595A ZA975595A ZA975595B ZA 975595 B ZA975595 B ZA 975595B ZA 975595 A ZA975595 A ZA 975595A ZA 975595 A ZA975595 A ZA 975595A ZA 975595 B ZA975595 B ZA 975595B
Authority
ZA
South Africa
Prior art keywords
signals
values
filter
fir filter
antipodal
Prior art date
Application number
ZA975595A
Other languages
English (en)
Inventor
Kenneth D Easton
Peter J 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
Publication of ZA975595B publication Critical patent/ZA975595B/xx

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)
  • 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)
ZA975595A 1996-06-27 1997-06-24 Rom-based finite impulse response filter for use in mobile telephone ZA975595B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA975595B true ZA975595B (en) 1998-10-08

Family

ID=24697582

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA975595A ZA975595B (en) 1996-06-27 1997-06-24 Rom-based finite impulse response filter for use in mobile telephone

Country Status (15)

Country Link
US (1) US5870431A (ru)
EP (1) EP0908009B1 (ru)
JP (2) JP2000514259A (ru)
CN (1) CN1115777C (ru)
AT (1) ATE474376T1 (ru)
AU (1) AU717714B2 (ru)
BR (1) BR9711599A (ru)
CA (1) CA2254929C (ru)
DE (1) DE69739935D1 (ru)
HK (1) HK1020503A1 (ru)
MY (1) MY117766A (ru)
RU (1) RU2189109C2 (ru)
TW (1) TW338858B (ru)
WO (1) WO1997050174A1 (ru)
ZA (1) ZA975595B (ru)

Families Citing this family (32)

* 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
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
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed 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
KR20210087089A (ko) 2018-11-27 2021-07-09 엑스콤 랩스 인코퍼레이티드 넌-코히어런트 협력 다중 입출력 통신
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
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink 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

Family Cites Families (8)

* 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
JPH04270510A (ja) * 1990-12-28 1992-09-25 Advantest Corp ディジタルフィルタ及び送信機
US5369606A (en) * 1992-09-14 1994-11-29 Harris Corporation Reduced state fir filter
NZ259776A (en) * 1992-11-16 1997-06-24 Ceridian Corp Identifying recorded or broadcast audio signals by mixing with encoded signal derived from code signal modulated by narrower bandwidth identification signal
US5535150A (en) * 1993-04-20 1996-07-09 Massachusetts Institute Of Technology Single chip adaptive filter utilizing updatable weighting techniques
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
CN1220058A (zh) 1999-06-16
CN1115777C (zh) 2003-07-23
CA2254929A1 (en) 1997-12-31
ATE474376T1 (de) 2010-07-15
MY117766A (en) 2004-08-30
JP2011259437A (ja) 2011-12-22
AU717714B2 (en) 2000-03-30
JP2000514259A (ja) 2000-10-24
CA2254929C (en) 2005-06-14
HK1020503A1 (en) 2000-05-05
BR9711599A (pt) 1999-08-24
US5870431A (en) 1999-02-09
RU2189109C2 (ru) 2002-09-10
AU3500397A (en) 1998-01-14
JP5118234B2 (ja) 2013-01-16
EP0908009B1 (en) 2010-07-14
TW338858B (en) 1998-08-21
EP0908009A1 (en) 1999-04-14
WO1997050174A1 (en) 1997-12-31
DE69739935D1 (de) 2010-08-26

Similar Documents

Publication Publication Date Title
HK1020503A1 (en) Rom-based finite impulse response filter for use in mobile telephone
CA2265114A1 (en) Multimode radio transmission system
GB2332275A (en) Seismic sensor units
AU514328B2 (en) Digital filter and demodulator for quarternary signals
HUT54842A (en) Subscriber unit for digital radio-telephone system
DK0951802T3 (da) Digitalt höreapparat, der anvender differenssignalrepræsentationer
CA2103497A1 (en) Method and Apparatus for Synchronizing a Received Signal in a Digital Radio Communication System
FI961841A0 (fi) Kvadratuuridesimaatioasteella varustettu vastaanotin, menetelmä digitaalisten signaalien prosessoimiseksi
CA2031054A1 (en) Inverse multiplexer and demultiplexer techniques
TW373375B (en) Receiver for M-ary FSK signals
GB2283381B (en) DC restoration circuit
CA2102406A1 (en) Apparatus for and Method of Synchronizing a Clock Signal
WO1998025343A3 (en) Floating point digital transversal filter
WO2001097420A3 (en) Multiplexing digital communication system
ES8306303A1 (es) "perfeccionamientos introducidos en una disposicion de desmodulador y de filtro en un sistema que incluye una fuente de senales digitales portadoras de informacion".
EP0386908A3 (en) Pcm communication system
EP1067688A3 (en) Digital filter and method of providing channel isolation in a radio frequency communication system
ID16868A (id) Transmisi sinyal informasi digital dengan frekuensi contoh pertama khusus
AU7708400A (en) A simplified digital fir filter for direct sequence spread spectrum communication systems
AU2549184A (en) Digital handsfree telephone
AU538735B2 (en) Telephone handsets using electroacoustic transducers
EP0851579A3 (en) A digital filter
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
TR199802131T2 (xx) Ta��nabilir telefon radyo.
TH11318EX (th) วงจรแทรกเสริมแบบดิจิตอล