FR2602933B1 - Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble - Google Patents

Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble

Info

Publication number
FR2602933B1
FR2602933B1 FR878710227A FR8710227A FR2602933B1 FR 2602933 B1 FR2602933 B1 FR 2602933B1 FR 878710227 A FR878710227 A FR 878710227A FR 8710227 A FR8710227 A FR 8710227A FR 2602933 B1 FR2602933 B1 FR 2602933B1
Authority
FR
France
Prior art keywords
assembly
miscellaneous
modem
devices
frequency synthesizer
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
FR878710227A
Other languages
English (en)
Other versions
FR2602933A1 (fr
Inventor
David N Critchlow
Graham M Avis
Sandra J K Earlam
Karle J Johnson
Bruce A Smetana
Gregory L Westling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Mobile Machines Corp
Original Assignee
International Mobile Machines Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25402332&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2602933(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by International Mobile Machines Corp filed Critical International Mobile Machines Corp
Priority to FR878710227A priority Critical patent/FR2602933B1/fr
Publication of FR2602933A1 publication Critical patent/FR2602933A1/fr
Application granted granted Critical
Publication of FR2602933B1 publication Critical patent/FR2602933B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • 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
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
    • H03H17/0657—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/095—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a lock detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0052—Digital to analog conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0054—Digital filters
    • H03D2200/0058—Digital filters using a digital filter with interpolation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/006—Signal sampling
    • H03D2200/0062—Computation of input samples, e.g. successive samples
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0082—Quadrature arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Time-Division Multiplex Systems (AREA)
FR878710227A 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble Expired - Lifetime FR2602933B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR878710227A FR2602933B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/893,916 US4825448A (en) 1986-08-07 1986-08-07 Subscriber unit for wireless digital telephone system
FR878710227A FR2602933B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble

Publications (2)

Publication Number Publication Date
FR2602933A1 FR2602933A1 (fr) 1988-02-19
FR2602933B1 true FR2602933B1 (fr) 1990-09-28

Family

ID=25402332

Family Applications (10)

Application Number Title Priority Date Filing Date
FR868616232A Expired - Lifetime FR2602622B1 (fr) 1986-08-07 1986-11-21 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710224A Expired - Lifetime FR2602938B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710222A Expired - Lifetime FR2602928B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710225A Expired - Lifetime FR2602929B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710221A Expired - Lifetime FR2602935B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR8710220A Expired - Lifetime FR2602941B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710226A Expired - Lifetime FR2602944B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710227A Expired - Lifetime FR2602933B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR8710223A Expired - Lifetime FR2607336B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR8710228A Expired - Lifetime FR2602934B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble

Family Applications Before (7)

Application Number Title Priority Date Filing Date
FR868616232A Expired - Lifetime FR2602622B1 (fr) 1986-08-07 1986-11-21 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710224A Expired - Lifetime FR2602938B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710222A Expired - Lifetime FR2602928B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710225A Expired - Lifetime FR2602929B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710221A Expired - Lifetime FR2602935B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR8710220A Expired - Lifetime FR2602941B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR878710226A Expired - Lifetime FR2602944B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR8710223A Expired - Lifetime FR2607336B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble
FR8710228A Expired - Lifetime FR2602934B1 (fr) 1986-08-07 1987-07-20 Ensemble d'abonne pour telephonie numerique sans fil; modem et dispositifs divers (synthetiseur de frequence...) pour cet ensemble

Country Status (28)

Country Link
US (10) US4825448A (fr)
JP (3) JPH0773384B2 (fr)
KR (1) KR900005142B1 (fr)
CN (1) CN1009610B (fr)
AR (1) AR244479A1 (fr)
AT (1) AT404203B (fr)
AU (10) AU570152B1 (fr)
BE (1) BE905822A (fr)
BR (1) BR8701441A (fr)
CA (3) CA1263900A (fr)
CH (1) CH674435A5 (fr)
DK (1) DK175148B1 (fr)
ES (1) ES2003951A6 (fr)
FI (1) FI85077C (fr)
FR (10) FR2602622B1 (fr)
GB (10) GB2194711B (fr)
GR (1) GR871236B (fr)
HK (1) HK64194A (fr)
IE (1) IE67260B1 (fr)
IL (1) IL80497A (fr)
IN (1) IN170912B (fr)
IT (1) IT1207336B (fr)
MX (1) MX164955B (fr)
NL (8) NL192170C (fr)
NO (1) NO172090C (fr)
PT (1) PT85503B (fr)
SE (5) SE8604661L (fr)
TR (1) TR23782A (fr)

Families Citing this family (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
US4777633A (en) * 1987-08-14 1988-10-11 International Mobile Machines Corp. Base station for wireless digital telephone system
FR2645690B1 (fr) * 1987-07-08 1997-12-19 Int Mobile Machines Dispositif d'initialisation d'une voie de communication entre un poste d'abonne et une station de base dans un systeme de communication
BE1004074A3 (fr) * 1987-07-08 1992-09-22 Internat Mobile Machines Corp Dispositif d'initialisation d'une voie de communication entre un poste d'abonne et une station de base dans un systeme de communication.
US5930297A (en) * 1989-11-20 1999-07-27 Interdigital Technology Corporation Base station emulator
US5495508A (en) * 1987-11-20 1996-02-27 Interdigital Technology Corporation Base station emulator
US7106819B1 (en) * 1987-11-20 2006-09-12 Interdigital Technology Corporation Plural subscriber system utilizing synchronized timeslots on a single frequency
US5031230A (en) * 1988-10-24 1991-07-09 Simulcomm Partnership Frequency, phase and modulation control system which is especially useful in simulcast transmission systems
JPH02280422A (ja) * 1989-04-20 1990-11-16 Nec Corp 音声会議装置用エコーキャンセラのトレーニング方法
US5291474A (en) * 1989-05-18 1994-03-01 Nokia Mobile Phones Ltd. Procedure for forming frequencies of a digital radio telephone
US5008900A (en) * 1989-08-14 1991-04-16 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
US5146473A (en) * 1989-08-14 1992-09-08 International Mobile Machines Corporation Subscriber unit for wireless digital subscriber communication system
NL194631C (nl) * 1989-08-14 2002-09-03 Interdigital Tech Corp Abonnee-eenheid voor het verwerken van communicatiesignalen in een draadloos telecommunicatiesysteem.
GB2266646B (en) * 1989-08-14 1994-06-29 Interdigital Tech Corp A finite impulse response (FIR) chip for use in a subscriber unit for a wireless digital telephone system
US5062123A (en) * 1989-08-16 1991-10-29 Cincinnati Electronics Corporation Kalman predictor for providing a relatively noise free indication of the phase of a carrier laden with noise
WO1991007828A1 (fr) * 1989-11-09 1991-05-30 Roger Reed Circuit numerique de modulation de frequence et de synthese de la porteuse dans un systeme radiophonique numerique
GB2240242A (en) * 1990-01-19 1991-07-24 Philips Electronic Associated Exponential multiplier
DE69120594T2 (de) * 1990-04-26 1997-01-09 Fujitsu Ltd Wellenformentzerrer mit Neuronalnetzwerk
JPH06104374A (ja) * 1991-01-04 1994-04-15 Internatl Business Mach Corp <Ibm> 電子回路パッケージ並びにその導体の成形加工装置及び成形加工方法
US5259003A (en) * 1991-11-08 1993-11-02 Teknekron Communications Systems, Inc. Method of encoding two digital data signals
DE4201194A1 (de) * 1992-01-18 1993-07-22 Sel Alcatel Ag Verfahren und schaltungsanordnung zur offset-korrektur in einem tdma-funkempfaenger
US5745523A (en) * 1992-10-27 1998-04-28 Ericsson Inc. Multi-mode signal processing
US5530722A (en) * 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
US5727023A (en) * 1992-10-27 1998-03-10 Ericsson Inc. Apparatus for and method of speech digitizing
US5867537A (en) * 1992-10-27 1999-02-02 Ericsson Inc. Balanced tranversal I,Q filters for quadrature modulators
JP2601987B2 (ja) * 1992-11-13 1997-04-23 インターナショナル・ビジネス・マシーンズ・コーポレイション パーソナル通信装置
US7082106B2 (en) * 1993-01-08 2006-07-25 Multi-Tech Systems, Inc. Computer-based multi-media communications system and method
US5745527A (en) * 1993-02-16 1998-04-28 Motorola, Inc. Encoding method for constellation symbols of an RF transmitter
US5546383A (en) * 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US5648777A (en) * 1993-12-16 1997-07-15 Lucent Technologies Inc. Data converter with FIFO
NO944905L (no) * 1993-12-21 1995-06-22 Nec Corp Senderanordning for mobilt satelittkommunikasjonsutstyr
JP2848229B2 (ja) * 1993-12-28 1999-01-20 日本電気株式会社 受信回路
US5715009A (en) 1994-03-29 1998-02-03 Sony Corporation Picture signal transmitting method and apparatus
US6418131B1 (en) 1994-06-17 2002-07-09 Lake Communications Limited Spectrum monitoring for PSTN subscribers
US6058104A (en) * 1994-06-17 2000-05-02 Home Wireless Networks, Inc. Communications webs for PSTN subscribers
US6404761B1 (en) 1994-06-17 2002-06-11 Home Wireless Networks, Inc. Communications webs with personal communications links for PSTN subscribers
US5555258A (en) * 1994-06-17 1996-09-10 P. Stuckey McIntosh Home personal communication system
US5548541A (en) * 1994-08-08 1996-08-20 Interstate Electronics Corporation Finite impulse response filter for modulator in digital data transmission system
US5633893A (en) * 1994-09-29 1997-05-27 Ericsson Inc. Digital modulation method with controlled envelope variation
US5970103A (en) 1996-09-06 1999-10-19 Townshend; Brent High speed communications system for analog subscriber connections
KR100422963B1 (ko) * 1994-12-09 2004-03-12 브렌트 타운젠드 소스로부터 가입자로 통신하기 위한 방법과 디지털 데이터 스트림을 복원하기 위한 고속 디코더
US5579341A (en) * 1994-12-29 1996-11-26 Motorola, Inc. Multi-channel digital transceiver and method
US5828698A (en) * 1995-02-28 1998-10-27 Hughes Electronics Data flow management method for CDPD demodulator operating without CDPD clock
US5610942A (en) * 1995-03-07 1997-03-11 Chen; Keping Digital signal transcoder and method of transcoding a digital signal
US5734979A (en) * 1995-05-04 1998-03-31 Interwave Communications International, Ltd. Cellular base station with intelligent call routing
US5781582A (en) * 1995-05-04 1998-07-14 Interwave Communications International Ltd. Frequency agile transceiver with multiple frequency synthesizers per transceiver
US5682403A (en) * 1995-05-04 1997-10-28 Wavelink Communications Spread spectrum communication network signal processor
US6188720B1 (en) * 1995-05-12 2001-02-13 Itt Manufacturing Enterprises, Inc. Modulation and signaling converter
US5825829A (en) * 1995-06-30 1998-10-20 Scientific-Atlanta, Inc. Modulator for a broadband communications system
US5787115A (en) * 1995-12-28 1998-07-28 Northern Telecom Limited Key telephone system without common control
GB2309864A (en) * 1996-01-30 1997-08-06 Sony Corp An equalizer and modulator using a training sequence and multiple correlation with a stored copy of the sequence
FR2745138B1 (fr) * 1996-02-16 1998-05-07 Thomson Multimedia Sa Dispositif de correction de bruit de phase dans un recepteur numerique
US5734676A (en) * 1996-05-24 1998-03-31 International Business Machines Corporation Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio receiver
US5761259A (en) * 1996-05-24 1998-06-02 International Business Machines Corporation Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio
US5751114A (en) * 1996-05-24 1998-05-12 International Business Machines Corporation Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio transmitter
JP3226807B2 (ja) * 1996-11-20 2001-11-05 静岡日本電気株式会社 無線呼出システム用の自動周波数補正装置および自動周波数補正方法
US5884178A (en) * 1996-11-27 1999-03-16 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimating speed of a mobile station in a cellular communications system
DE19703614C2 (de) * 1997-01-31 1999-10-28 Siemens Ag Verfahren zum drahtlosen Übermitteln von nach einer Breitband-Übertragungstechnologie konzipierten Breitband-orientierten Datenströmen
US5861766A (en) * 1997-04-17 1999-01-19 Western Digital Corporation Multimode frequency synthesizer having high loop gain in frequency seek mode
US5970099A (en) * 1997-06-06 1999-10-19 Advanced Micro Devices, Inc. Silent polarity reversal in a communication system
US6636489B1 (en) 1997-11-03 2003-10-21 Bell South Wireless Data. L.P. Wireless management system and a method for an automated over-the-air managing process for wireless communication device
UA57811C2 (uk) * 1997-11-21 2003-07-15 Пфайзер Продактс Інк. Фармацевтична композиція, що містить інгібітор альдозоредуктази та інгібітор глікогенфосфорилази (варіанти), комплект, який її включає, та способи лікування ссавців зі станом інсулінорезистентності
CA2265089C (fr) * 1998-03-10 2007-07-10 Sony Corporation Systeme de transcodage utilisant les informations d'encodage
US6205183B1 (en) * 1998-05-29 2001-03-20 Ericsson Inc. Methods of suppressing reference oscillator harmonic interference and related receivers
US6452948B1 (en) * 1998-06-10 2002-09-17 Sicom, Inc. Method for baud-clock phase synchronization in a TDMA digital communications system and apparatus therefor
GB2340352B (en) * 1998-07-31 2003-05-07 Roke Manor Research Sampling means for use with rake receiver
US6567981B1 (en) 1998-08-03 2003-05-20 Elysium Broadband Inc. Audio/video signal redistribution system
ATE235769T1 (de) * 1999-01-15 2003-04-15 Nokia Corp Schnittstelle zwischen einer basisband- vorrichtung und einem rf-transceiver
US7236526B1 (en) * 1999-02-09 2007-06-26 Sony Corporation Coding system and its method, coding device and its method, decoding device and its method, recording device and its method, and reproducing device and its method
US6570907B1 (en) 1999-10-04 2003-05-27 Ericsson Inc. Simplified finite impulse response (FIR) digital filter for direct sequencespread spectrum communication
WO2001065680A2 (fr) * 2000-03-02 2001-09-07 Adc Telecommunications, Inc. Architecture pour decodeur de frequence intermediaire
US6741650B1 (en) 2000-03-02 2004-05-25 Adc Telecommunications, Inc. Architecture for intermediate frequency encoder
US6721372B1 (en) 2000-03-17 2004-04-13 Lucent Technologies Inc. Intelligent software controlled correction of frequency tracking for a local oscillator of a receiver of a wireless device
KR20010109475A (ko) * 2000-06-01 2001-12-10 윌리엄 이. 갈라스 장거리 양방향 저전력 통신 장치 및 통신 장치 활성화 방법
KR20020034540A (ko) * 2000-11-02 2002-05-09 박종섭 이동통신 제어국 시스템에서의 1ｐｐｓ 그리취 제거방법
US20030013477A1 (en) * 2001-07-12 2003-01-16 Mcalinden Paul Controlling dual processors in cellular telephones
US7139326B2 (en) * 2001-09-14 2006-11-21 Analog Devices, Inc. Image-canceling quadrature modulator and method
US20050201473A1 (en) * 2001-12-06 2005-09-15 Ismail Lakkis Systems and methods for receiving data in a wireless communication network
US7541909B2 (en) * 2002-02-08 2009-06-02 Metglas, Inc. Filter circuit having an Fe-based core
US20030179838A1 (en) * 2002-03-20 2003-09-25 Francois Hamon Vector based tracking system and method for symbol timing recovery
US7197062B2 (en) * 2002-10-01 2007-03-27 Intel Corporation Method and apparatus to detect and decode information
US7187736B2 (en) * 2003-02-13 2007-03-06 Motorola Inc. Reducing interference in a GSM communication system
JP4196726B2 (ja) * 2003-05-14 2008-12-17 ソニー株式会社 画像処理装置および画像処理方法、記録媒体、並びに、プログラム
US6990010B1 (en) * 2003-08-06 2006-01-24 Actel Corporation Deglitching circuits for a radiation-hardened static random access memory based programmable architecture
CN100433574C (zh) * 2004-09-30 2008-11-12 中兴通讯股份有限公司 一种基站前向链路的冗余备份系统及射频切换装置
KR100895886B1 (ko) * 2008-05-08 2009-05-04 주식회사 파이칩스 이중 대역 ｇｐｓ/ｇａｌｉｌｅｏ 위성 신호 수신기
WO2014182474A1 (fr) * 2013-05-09 2014-11-13 The Regents Of The University Of California Modulation et démodulation à faible latence en mode courant différentiel pour connexion de puce à puce
US10009686B1 (en) * 2017-04-17 2018-06-26 Cirrus Logic, Inc. Fully-differential current digital-to-analog converter
US11616667B2 (en) * 2020-08-11 2023-03-28 Qualcomm Incorporated Multi-level coded modulation for non-coherent communication
US11528777B2 (en) * 2021-03-16 2022-12-13 Inseego Corp. Cellular modem interfaces for modularization

Family Cites Families (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US498500A (en) * 1893-05-30 Steam-boiler and furnace
US2808504A (en) * 1955-03-22 1957-10-01 Rca Corp Single sideband transmitting and receiving unit
US4545061A (en) * 1962-09-28 1985-10-01 Sylvania Electric Products Inc. Synchronizing system
US3332016A (en) * 1963-11-05 1967-07-18 Viktor J Pokorny Single sideband transceiver system
US3370235A (en) * 1964-09-11 1968-02-20 Nippon Electric Co Dual pilot frequency-correcting terminal stations for satellite repeater system
US3363193A (en) * 1966-02-18 1968-01-09 Varian Associates Adjustable frequency atomic frequency standard
US3497627A (en) * 1966-04-15 1970-02-24 Ibm Rate conversion system
JPS5324761B1 (fr) * 1968-10-11 1978-07-22
US3639739A (en) * 1969-02-05 1972-02-01 North American Rockwell Digital low pass filter
US3603975A (en) * 1969-04-01 1971-09-07 Gordon Eng Co Device for analog to digital conversion or digital to analog conversion
GB1304910A (fr) * 1970-08-05 1973-01-31
US3864524A (en) * 1971-10-30 1975-02-04 Electronic Communications Asynchronous multiplexing of digitized speech
AU5314773A (en) * 1972-03-10 1974-09-12 Cowan-Glass Alexander Communications system
US3829670A (en) * 1972-04-10 1974-08-13 Massachusetts Inst Technology Digital filter to realize efficiently the filtering required when multiplying or dividing the sampling rate of a digital signal by a composite integer
GB1371185A (en) * 1972-05-03 1974-10-23 Gen Motors Corp Vehicle crash recorders
JPS5325443B2 (fr) * 1972-12-29 1978-07-27
US3820112A (en) * 1973-10-01 1974-06-25 A Roth High speed analog-to-digital conversion system
US3922496A (en) * 1974-02-11 1975-11-25 Digital Communications Corp TDMA satellite communications system with guard band obviating ongoing propagation delay calculation
US3982241A (en) * 1974-08-19 1976-09-21 Digital Equipment Corporation Self-zeroing analog-to-digital conversion system
US3932821A (en) * 1974-11-08 1976-01-13 Narco Scientific Industries, Inc. Out of lock detector for phase lock loop synthesizer
US3959595A (en) * 1975-01-09 1976-05-25 Sperry Rand Corporation Digital signal multiplexer/concentrator
JPS5812776B2 (ja) * 1975-05-24 1983-03-10 日本電気株式会社 デイジタルシンゴウノソクドヘンカンカイロ
JPS51144167A (en) * 1975-06-04 1976-12-10 Nec Corp Digital phase modulation method
US4086536A (en) * 1975-06-24 1978-04-25 Honeywell Inc. Single sideband transmitter apparatus
US4004226A (en) * 1975-07-23 1977-01-18 Codex Corporation QAM receiver having automatic adaptive equalizer
US4044307A (en) * 1975-08-01 1977-08-23 Milgo Electronic Corporation Data modems with automatic equalization, drop-out detection and data echo protection
US4021616A (en) * 1976-01-08 1977-05-03 Ncr Corporation Interpolating rate multiplier
GB1584621A (en) * 1976-08-02 1981-02-18 Motorola Inc Multichannel communication device
US4058713A (en) * 1976-09-20 1977-11-15 General Signal Corporation Equalization by adaptive processing operating in the frequency domain
US4398062A (en) * 1976-11-11 1983-08-09 Harris Corporation Apparatus for privacy transmission in system having bandwidth constraint
US4141072A (en) * 1976-12-28 1979-02-20 Xerox Corporation Frequency domain automatic equalizer using minimum mean square error correction criteria
DE2659635B2 (de) * 1976-12-30 1979-06-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur digitalen Informationsübertragung fiber Funk
IT1082802B (it) * 1977-05-02 1985-05-21 Cselt Centro Studi Lab Telecom Unita microprogrammata per una apparecchiatura di terminazione di rete in trasmissione dati integrata con dispositivo di mo demodulazione e per la relativa apparecchiatura di centrale
US4154980A (en) * 1977-08-29 1979-05-15 Motorola, Inc. Noise blanker with variable rate-shut-off and/or variable blanking threshold level
US4229822A (en) * 1977-09-06 1980-10-21 Motorola, Inc. Data detector for a data communication system
IL56382A (en) * 1978-02-13 1981-05-20 Motorola Inc Method and apparatus for a radiotelephone communications system
US4236254A (en) * 1978-03-27 1980-11-25 Motorola, Inc. Radio receiver blanker inhibit circuit
DE2823343B1 (de) * 1978-05-29 1979-08-16 Siemens Ag Verfahren und Anordnung zur Taktsignalrueckgewinnung bei digitaler Signaluebertragung
US4208632A (en) * 1978-06-30 1980-06-17 Raytheon Company Radar receiver
US4171467A (en) * 1978-07-20 1979-10-16 Bell Telephone Laboratories, Incorporated Signal multiplexing circuit
US4206320A (en) * 1978-08-21 1980-06-03 University Of Illinois Foundation High speed modem suitable for operating with a switched network
IT1159939B (it) * 1978-10-18 1987-03-04 Sits Soc It Telecom Siemens Ricevitore per sistemi di trasmissione dati con modulazione d'ampiezza a banda laterale unica con portante attenuata
CA1176336A (fr) * 1979-04-23 1984-10-16 Motorola, Inc. Eliminateur de bruit qui suit le niveau moyen du bruit
EP0018702A1 (fr) * 1979-04-30 1980-11-12 Motorola, Inc. Circuit pour éliminer le bruit dans un récepteur radio
GB2052216B (en) * 1979-06-08 1983-09-21 Plessey Co Ltd Duplex transceivers
DE2937073C2 (de) * 1979-09-13 1982-10-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur gleichzeitigen Übertragung mehrerer Datenströme über einen Kanal
DE2950339C2 (de) * 1979-12-14 1984-06-07 ANT Nachrichtentechnik GmbH, 7150 Backnang Verfahren und Anordnung zur digitalen Regelung der Trägerphase in Empfängern von Datenübertragungssystemen
FR2478914B1 (fr) * 1980-03-19 1986-01-31 Ibm France Procede et dispositif pour l'ajustement initial de l'horloge d'un recepteur de donnees synchrone
US4335466A (en) * 1980-03-27 1982-06-15 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for measuring irradiated fuel profiles
US4328585A (en) * 1980-04-02 1982-05-04 Signatron, Inc. Fast adapting fading channel equalizer
US4488144A (en) * 1980-05-01 1984-12-11 Analogic Corporation High linearity digital to analog converter
DE3071023D1 (en) * 1980-06-18 1985-09-26 Advanced Micro Devices Inc Interpolative encoder for subscriber line audio processing circuit apparatus
US4365338A (en) * 1980-06-27 1982-12-21 Harris Corporation Technique for high rate digital transmission over a dynamic dispersive channel
GB2079552B (en) * 1980-07-02 1984-02-01 Philips Electronic Associated Double phase lock loop
JPS6027218B2 (ja) * 1980-10-31 1985-06-27 日本電気株式会社 無線電話装置の制御チヤンネル障害検出方式
US4363002A (en) * 1980-11-13 1982-12-07 Fuller Robert M Clock recovery apparatus for phase shift keyed encoded data
US4430743A (en) * 1980-11-17 1984-02-07 Nippon Electric Co., Ltd. Fast start-up system for transversal equalizers
US4377860A (en) * 1981-01-05 1983-03-22 American Microsystems, Inc. Bandwidth reduction method and structure for combining voice and data in a PCM channel
US4437183A (en) * 1981-01-12 1984-03-13 General Datacomm Industries, Inc. Method and apparatus for distributing control signals
FR2502423A1 (fr) * 1981-03-17 1982-09-24 Thomson Brandt Demodulateur numerique de signaux et systeme de television comportant un tel demodulateur
JPS57173232A (en) * 1981-04-17 1982-10-25 Hitachi Ltd Automatic equalizer
US4375692A (en) * 1981-04-30 1983-03-01 The United States Of America As Represented By The Secretary Of The Navy Least squares lattice decision feedback equalizer
JPS5854740A (ja) * 1981-09-28 1983-03-31 Nec Corp 周波数シンセサイザ
SE439083B (sv) * 1981-11-30 1985-05-28 Ellemtel Utvecklings Ab Sett att bringa en oscillator i fas med en inkommande signal jemte anordning for genomforandet av settet
US4449250A (en) * 1981-12-21 1984-05-15 Motorola, Inc. Radio-frequency synthesizer for duplex radios
JPS58121838A (ja) * 1981-12-28 1983-07-20 Fujitsu Ltd 自動等化器
US4439756A (en) * 1982-01-20 1984-03-27 International Telephone And Telegraph Corporation Delta-Sigma modulator with switch capacitor implementation
DE3201965A1 (de) * 1982-01-22 1983-08-04 Siemens AG, 1000 Berlin und 8000 München Digitales nachrichtenuebertragungssystem
JPS58141059A (ja) * 1982-02-15 1983-08-22 Nec Corp 多値デイジタル無線通信方式
DE3209724A1 (de) * 1982-03-17 1983-09-29 Siemens AG, 1000 Berlin und 8000 München Verfahren und einrichtung zur ueberwachung einer pcm-codier-/decodiereinrichtung
US4466129A (en) * 1982-05-06 1984-08-14 Motorola, Inc. Noise reducing circuitry for single sideband receivers
JPS58198934A (ja) * 1982-05-17 1983-11-19 Sony Corp 秘話装置
CA1191905A (fr) * 1982-06-30 1985-08-13 Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee Modem a spectre etendu
US4651104A (en) * 1982-07-07 1987-03-17 Fujitsu Limited Frequency converter with automatic frequency control
US4606045A (en) * 1982-08-02 1986-08-12 Trw Inc. Method and apparatus for detecting an equalizer training period in a receiving-end modem
US4462108A (en) * 1982-08-02 1984-07-24 Trw Inc. Modem signal acquisition technique
US4500912A (en) * 1982-08-04 1985-02-19 Rca Corporation FIR Chrominance bandpass sampled data filter with internal decimation
JPS5980026A (ja) * 1982-10-30 1984-05-09 Nec Corp トレ−ニング検出回路
DE3245344C2 (de) * 1982-12-08 1986-07-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Schaltungsanordnung für einen Empfänger für Datenübertragung mittels vierstufiger Phasenumtastung
US4476575A (en) * 1982-12-13 1984-10-09 General Electric Company Radio transceiver
JPS59117838A (ja) * 1982-12-24 1984-07-07 Sony Corp マ−カ−信号検出回路
GB2136250A (en) * 1983-02-04 1984-09-12 Mcmichael Ltd Demodulators
US4631746A (en) * 1983-02-14 1986-12-23 Wang Laboratories, Inc. Compression and expansion of digitized voice signals
US4800574A (en) * 1983-05-10 1989-01-24 Ricoh Company, Ltd. Digital modulator/demodulator including non-linear analog-to-digital converter and circuitry compensating for the non-linearity of the converter
US4573166A (en) * 1983-06-24 1986-02-25 Wolfdata, Inc. Digital modem with plural microprocessors
GB2144283B (en) * 1983-07-27 1986-09-17 Rediffusion Radio Syst Demodulator
SE437750B (sv) * 1983-08-05 1985-03-11 Philips Norden Ab Anordning for eliminering av storpulser pa utgangen av en d/a-omvandlare
US4590602A (en) * 1983-08-18 1986-05-20 General Signal Wide range clock recovery circuit
US4510624A (en) * 1983-09-22 1985-04-09 Motorola, Inc. Noise blanking arrangement to minimize blanker splatter
US4646326A (en) * 1983-10-20 1987-02-24 Motorola Inc. QAM modulator circuit
US4568888A (en) * 1983-11-08 1986-02-04 Trw Inc. PLL Fast frequency synthesizer with memories for coarse tuning and loop gain correction
JPS60124125A (ja) * 1983-12-08 1985-07-03 Ishida Scales Mfg Co Ltd 多入力信号高速アナログ・デジタル変換回路
US4581746A (en) * 1983-12-27 1986-04-08 At&T Bell Laboratories Technique for insertion of digital data bursts into an adaptively encoded information bit stream
JPS60140931A (ja) * 1983-12-28 1985-07-25 Pioneer Electronic Corp 通信装置
JPS60141056A (ja) * 1983-12-28 1985-07-26 Hitachi Denshi Ltd キヤリヤ位相制御装置
GB2153186B (en) * 1984-01-13 1987-04-23 Ncr Co Digital data receiver including timing adjustment circuit
GB8401029D0 (en) * 1984-01-16 1984-02-15 Ele International Ltd Data aquisition device
US4621366A (en) * 1984-02-22 1986-11-04 Universal Data Systems, Inc. Modem equalizer training using previously stored parameters
US4644565A (en) * 1984-06-12 1987-02-17 Canadian Patents And Development Limited-Societe Canadienne Des Brevets Et D'exploitation Limitee Superposed quadrature modulated baseband signal processor
US4642564A (en) * 1984-06-15 1987-02-10 Cooper Industries, Inc. Measuring circuit and method for power distribution equipment
US4608711A (en) * 1984-06-21 1986-08-26 Itt Corporation Cellular mobile radio hand-off utilizing voice channel
JPS6139633A (ja) * 1984-07-31 1986-02-25 Ricoh Co Ltd 等化システムの信号引込み方式
JPH0671193B2 (ja) * 1984-08-31 1994-09-07 株式会社日立製作所 非巡回型デイジタル・フイルタ
US4663766A (en) * 1984-10-10 1987-05-05 Paradyne Corporation Method of determining automatically the rate of data signals in a modem
US4961206A (en) * 1984-11-22 1990-10-02 Martin Tomlinson Data modem system
DE3443974A1 (de) * 1984-12-01 1986-06-05 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum uebertragen von digitalen informationen in einem funktelefonnetz
DE3446529A1 (de) * 1984-12-20 1986-07-03 Blaupunkt-Werke Gmbh, 3200 Hildesheim Verfahren zur stoerverminderung in einer rundfunk-empfangsanlage
JPS61157028A (ja) * 1984-12-28 1986-07-16 Fujitsu Ltd 周波数シンセサイザ
JPS61159827A (ja) * 1984-12-31 1986-07-19 Teac Co ディジタル―アナログ変換方法
ATE133827T1 (de) * 1984-12-31 1996-02-15 Motorola Inc Bündelfunksystem
US4761796A (en) * 1985-01-24 1988-08-02 Itt Defense Communications High frequency spread spectrum communication system terminal
US4644561A (en) * 1985-03-20 1987-02-17 International Mobile Machines Corp. Modem for RF subscriber telephone system
US4675863A (en) * 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
GB8510808D0 (en) * 1985-04-29 1985-06-05 Automation & Computer Systems Communication system
US4730310A (en) * 1985-05-03 1988-03-08 American Telephone And Telegraph Company Terrestrial communications system
FR2582173B1 (fr) * 1985-05-14 1987-06-26 Labo Electronique Physique Circuit integre de conversion numerique-analogique n/a muni d'un dispositif de reduction de pics de commutation
DE3527330A1 (de) * 1985-07-31 1987-02-05 Philips Patentverwaltung Digitales funkuebertragungssystem mit verbindungsbegleitenden organisationskanal im zeitmultiplexrahmen
US4689804A (en) * 1985-08-14 1987-08-25 Racal Data Communications Inc. Method and apparatus for reduction of sinusoidal phase jitter in a high speed data modem
US4669091A (en) * 1986-02-10 1987-05-26 Rca Corporation Adaptive multipath distortion equalizer
US4780884A (en) * 1986-03-03 1988-10-25 American Telephone And Telegraph Company, At&T Bell Laboratories Suppressed double-sideband communication system
US4785260A (en) * 1986-03-18 1988-11-15 International Mobile Machines Corporation Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels
US4745628A (en) * 1986-04-15 1988-05-17 Terra Marine Engineering, Inc. Symbol generator for phase modulated system
US4647864A (en) * 1986-04-21 1987-03-03 General Electric Company Variable-delay, sine-cosine non-coherent demodulator
US4680780A (en) * 1986-05-01 1987-07-14 Tektronix, Inc. Clock recovery digital phase-locked loop
US4823128A (en) * 1986-05-19 1989-04-18 Tektronix, Inc. Digital-to-analog converter filter for producing a continuous analog signal output without distortion
US4808937A (en) * 1986-07-15 1989-02-28 Hayes Microcomputer Products, Inc. Phase-locked loop for a modem
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
US4728959A (en) * 1986-08-08 1988-03-01 Ventana Sciences Inc. Direction finding localization system
US4727591A (en) * 1986-09-04 1988-02-23 Arvin Industries, Inc. Microprocessor controlled tuning system
US4777633A (en) * 1987-08-14 1988-10-11 International Mobile Machines Corp. Base station for wireless digital telephone system
US4703520A (en) * 1986-10-31 1987-10-27 Motorola, Inc. Radio transceiver having an adaptive reference oscillator
US4825452A (en) * 1987-03-04 1989-04-25 National Semiconductor Corporation Digital FSK demodulator
US4879757A (en) * 1987-05-07 1989-11-07 Hazeltine Corp. Tweet elimination, or reduction, in superheterodyne receivers
US4851841A (en) * 1987-10-02 1989-07-25 Crystal Semiconductor Corporation Gain scaling of oversampled analog-to-digital converters
DE4107660C2 (de) * 1991-03-09 1995-05-04 Bosch Gmbh Robert Verfahren zur Montage von Silizium-Plättchen auf metallischen Montageflächen
DE4124283A1 (de) * 1991-07-15 1993-01-21 Degussa Umesterung von peptiden

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FR2602928A1 (fr) 1988-02-19
US4994802A (en) 1991-02-19
GB2194418B (en) 1991-04-24
GB2194403A (en) 1988-03-02
SE0401973D0 (sv) 2004-08-03
US4996697A (en) 1991-02-26
NO864618L (no) 1988-02-08
SE0400130L (sv) 2004-01-23
GR871236B (en) 1988-02-23
AU8137187A (en) 1988-03-17
GB2194711A (en) 1988-03-09
SE9902040D0 (sv) 1999-06-03
US5159705A (en) 1992-10-27
US4881240A (en) 1989-11-14
GB2194404A (en) 1988-03-02
CN1009610B (zh) 1990-09-12
SE0400130D0 (sv) 2004-01-23
NL192170C (nl) 1997-02-04
SE9402221L (sv) 1994-06-23
GB2199214B (en) 1991-05-01
GB2199214A (en) 1988-06-29
JP3110681B2 (ja) 2000-11-20
GB2198916B (en) 1991-04-24
GB8717221D0 (en) 1987-08-26
AU579778B2 (en) 1988-12-08
GB2194403B (en) 1991-03-27
AU577729B2 (en) 1988-09-29
AU579779B2 (en) 1988-12-08
IL80497A0 (en) 1987-02-27
US5177741A (en) 1993-01-05
FR2602944B1 (fr) 1991-03-15
ATA36587A (de) 1998-01-15
FR2602935B1 (fr) 1990-07-13
CA1272317A (fr) 1990-07-31
AU570152B1 (en) 1988-03-03
AU8136987A (en) 1988-03-17
JPS6343430A (ja) 1988-02-24
DK178987D0 (da) 1987-04-08
AU8136487A (en) 1988-03-17
FR2602935A1 (fr) 1988-02-19
AU579782B2 (en) 1988-12-08
FI85077C (fi) 1992-02-25
US4943983A (en) 1990-07-24
NO172090C (no) 1993-06-02
FR2602938B1 (fr) 1990-07-13
AU579966B2 (en) 1988-12-15
AU8136787A (en) 1988-03-17
CA1319957C (fr) 1993-07-06
TR23782A (tr) 1990-09-13
AR244479A1 (es) 1993-10-29
NL192170B (nl) 1996-10-01
SE528439C2 (sv) 2006-11-14
DK178987A (da) 1988-02-08
ES2003951A6 (es) 1988-12-01
GB2194708B (en) 1990-11-21
FR2602934A1 (fr) 1988-02-19
NL9002803A (nl) 1991-04-02
SE8604661L (sv) 1988-02-08
IE863045L (en) 1988-02-07
NL9002798A (nl) 1991-04-02
AT404203B (de) 1998-09-25
DK175148B1 (da) 2004-06-14
GB2194711B (en) 1991-04-24
FR2602933A1 (fr) 1988-02-19
JPH10290188A (ja) 1998-10-27
FR2602622B1 (fr) 1990-12-14

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