US430964A
(en)
*
|
|
1890-06-24 |
|
Padding for burial-caskets |
US2070418A
(en)
*
|
1933-05-19 |
1937-02-09 |
Rca Corp |
Multiplex cable code telegraphy with diversity reception
|
US2941038A
(en)
*
|
1953-10-26 |
1960-06-14 |
Iwatsu Electric Co Ltd |
Multiplex telephone system
|
US2808504A
(en)
*
|
1955-03-22 |
1957-10-01 |
Rca Corp |
Single sideband transmitting and receiving unit
|
US3150374A
(en)
*
|
1959-06-25 |
1964-09-22 |
David E Sunstein |
Multichannel signaling system and method
|
US3332016A
(en)
*
|
1963-11-05 |
1967-07-18 |
Viktor J Pokorny |
Single sideband transceiver system
|
US3341776A
(en)
*
|
1964-01-13 |
1967-09-12 |
Collins Radio Co |
Error sensitive binary transmission system wherein four channels are transmitted via one carrier wave
|
US3348150A
(en)
*
|
1964-07-27 |
1967-10-17 |
Bell Telephone Labor Inc |
Diversity transmission system
|
US3370235A
(en)
|
1964-09-11 |
1968-02-20 |
Nippon Electric Co |
Dual pilot frequency-correcting terminal stations for satellite repeater system
|
US3471646A
(en)
*
|
1965-02-08 |
1969-10-07 |
Motorola Inc |
Time division multiplex system with prearranged carrier frequency shifts
|
US3363193A
(en)
|
1966-02-18 |
1968-01-09 |
Varian Associates |
Adjustable frequency atomic frequency standard
|
US3534264A
(en)
*
|
1966-04-15 |
1970-10-13 |
Ibm |
Adaptive digital communication system
|
US3497627A
(en)
*
|
1966-04-15 |
1970-02-24 |
Ibm |
Rate conversion system
|
GB1143202A
(en)
*
|
1966-06-22 |
1969-02-19 |
British Telecomm Res Ltd |
Improvements in electrical signalling systems using a common transmission path
|
FR1495527A
(ko)
*
|
1966-07-26 |
1967-12-20 |
|
|
US3529243A
(en)
*
|
1967-10-11 |
1970-09-15 |
Us Army |
Synchronous tactical radio communication system
|
US3505479A
(en)
*
|
1967-12-21 |
1970-04-07 |
Us Army |
Multiplex system with number of channels controlled according to signal-to-noise ratio
|
US3532985A
(en)
*
|
1968-03-13 |
1970-10-06 |
Nasa |
Time division radio relay synchronizing system using different sync code words for "in sync" and "out of sync" conditions
|
US3564147A
(en)
*
|
1968-04-05 |
1971-02-16 |
Communications Satellite Corp |
Local routing channel sharing system and method for communications via a satellite relay
|
US3631520A
(en)
*
|
1968-08-19 |
1971-12-28 |
Bell Telephone Labor Inc |
Predictive coding of speech signals
|
US3546684A
(en)
*
|
1968-08-20 |
1970-12-08 |
Nasa |
Programmable telemetry system
|
JPS534371B1
(ko)
*
|
1968-09-16 |
1978-02-16 |
|
|
JPS5324761B1
(ko)
*
|
1968-10-11 |
1978-07-22 |
|
|
JPS5011735B1
(ko)
*
|
1968-12-10 |
1975-05-06 |
|
|
JPS5125688B1
(ko)
*
|
1968-12-10 |
1976-08-02 |
|
|
US3639739A
(en)
*
|
1969-02-05 |
1972-02-01 |
North American Rockwell |
Digital low pass filter
|
US3573379A
(en)
*
|
1969-03-03 |
1971-04-06 |
Bendix Corp |
Communications system with frequency and time division techniques
|
US3644678A
(en)
*
|
1969-03-21 |
1972-02-22 |
Communications Satellite Corp |
Channel reallocation system and method
|
US3683116A
(en)
*
|
1969-07-16 |
1972-08-08 |
Communications Satellite Corp |
Terrestrial interface unit
|
AT338877B
(de)
*
|
1969-07-23 |
1977-09-26 |
Sits Soc It Telecom Siemens |
Fernmeldesystem mit einer anzahl von zweirichtungskanalen, von denen jeweils einer nur wahrend der dauer der verbindung zwischen wenigstens zwei sende-empfangs-geraten belegt ist
|
US3654395A
(en)
*
|
1969-10-15 |
1972-04-04 |
Communications Satellite Corp |
Synchronization of tdma space division satellite system
|
BE759258A
(fr)
*
|
1969-11-22 |
1971-05-24 |
Int Standard Electric Corp |
Systeme de transmission multiplex a repartition dans le temps par l'intermediaire de satellites
|
NL7000939A
(ko)
|
1970-01-23 |
1970-03-23 |
Philips Nv |
|
DE2020094C3
(de)
|
1970-04-24 |
1973-11-22 |
Siemens Ag, 1000 Berlin U. 8000 Muenchen |
Zeitmultiplexsystem zur Nach nchtenubertragung zwischen mehreren Bodenstationen über wenigstens einen mit einer Relaisstation ausgerüsteten Satelliten
|
US3742498A
(en)
*
|
1970-05-06 |
1973-06-26 |
Itt |
Synchronization and position location system
|
US3750024A
(en)
*
|
1971-06-16 |
1973-07-31 |
Itt Corp Nutley |
Narrow band digital speech communication system
|
US3740476A
(en)
*
|
1971-07-09 |
1973-06-19 |
Bell Telephone Labor Inc |
Speech signal pitch detector using prediction error data
|
US3812430A
(en)
*
|
1971-08-11 |
1974-05-21 |
Communications Satellite Corp |
Tdma satellite communications system with improved acquisition
|
US3818453A
(en)
*
|
1971-08-11 |
1974-06-18 |
Communications Satellite Corp |
Tdma satellite communications system
|
US3806879A
(en)
*
|
1971-08-11 |
1974-04-23 |
Communications Satellite Corp |
Tdma satellite communication system with multi-pcm frames per tdma frame
|
US3889063A
(en)
*
|
1971-08-19 |
1975-06-10 |
Phonplex Corp |
Multiplexed digital data communication system
|
US3836726A
(en)
*
|
1971-10-25 |
1974-09-17 |
Martin Marietta Corp |
Data transmission method and apparatus
|
US3864524A
(en)
*
|
1971-10-30 |
1975-02-04 |
Electronic Communications |
Asynchronous multiplexing of digitized speech
|
GB1364808A
(en)
*
|
1971-12-08 |
1974-08-29 |
Sendai Television Broadcasting |
Simultaneous radio communication system
|
FR2175833B3
(ko)
|
1972-03-10 |
1976-03-05 |
Cowan Glass Alexander Gb |
|
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
|
US4013840A
(en)
*
|
1972-05-15 |
1977-03-22 |
Teleplex, Inc. |
Tdm and fdm telephone communication
|
JPS5325443B2
(ko)
*
|
1972-12-29 |
1978-07-27 |
|
|
US3894194A
(en)
*
|
1973-02-16 |
1975-07-08 |
Edward G Frost |
Automatic mobile radio telephone system
|
DE2308736C2
(de)
|
1973-02-22 |
1982-04-08 |
Robert Bosch Gmbh, 7000 Stuttgart |
Einrichtung zum Übertragen von Datentelegrammen über einen ersten Funkkanal und von Sprachinformationen über einen zweiten Funkkanal
|
US3824543A
(en)
*
|
1973-06-26 |
1974-07-16 |
Bell Telephone Labor Inc |
Digital data interchange circuit for a multiplexer/demultiplexer
|
JPS5045508A
(ko)
|
1973-08-01 |
1975-04-23 |
|
|
US4051332A
(en)
*
|
1973-08-20 |
1977-09-27 |
Nippon Telegraph And Telephone Public Corporation |
Multiplex digital echo suppression system
|
US3820112A
(en)
*
|
1973-10-01 |
1974-06-25 |
A Roth |
High speed analog-to-digital conversion system
|
CA1035476A
(en)
|
1973-11-13 |
1978-07-25 |
Farinon Electric Of Canada Ltd. |
Telephone subscriber distribution system
|
DE2362855B2
(de)
|
1973-12-18 |
1977-12-01 |
Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover |
Verfahren zur uebertragung von digitalen signalen
|
US3922496A
(en)
*
|
1974-02-11 |
1975-11-25 |
Digital Communications Corp |
TDMA satellite communications system with guard band obviating ongoing propagation delay calculation
|
NL7407717A
(nl)
*
|
1974-06-10 |
1975-12-12 |
Philips Nv |
Radiotelefoniesysteem.
|
US4071711A
(en)
*
|
1974-08-02 |
1978-01-31 |
Farinon Electric Of Canada Ltd. |
Telephone subscriber distribution system
|
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
|
US4009344A
(en)
*
|
1974-12-30 |
1977-02-22 |
International Business Machines Corporation |
Inter-related switching, activity compression and demand assignment
|
US4009347A
(en)
*
|
1974-12-30 |
1977-02-22 |
International Business Machines Corporation |
Modular branch exchange and nodal access units for multiple access systems
|
US4009343A
(en)
*
|
1974-12-30 |
1977-02-22 |
International Business Machines Corporation |
Switching and activity compression between telephone lines and digital communication channels
|
US4009345A
(en)
*
|
1974-12-30 |
1977-02-22 |
International Business Machines Corporation |
External management of satellite linked exchange network
|
US3959595A
(en)
*
|
1975-01-09 |
1976-05-25 |
Sperry Rand Corporation |
Digital signal multiplexer/concentrator
|
GB1526005A
(en)
|
1975-03-17 |
1978-09-27 |
Ns Electronics |
Multiplexing communication system
|
US4027243A
(en)
*
|
1975-05-12 |
1977-05-31 |
General Electric Company |
Message generator for a controlled radio transmitter and receiver
|
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
|
JPS51144111A
(en)
*
|
1975-06-05 |
1976-12-10 |
Kokusai Denshin Denwa Co Ltd <Kdd> |
Echo cancelling 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
|
US4020332A
(en)
*
|
1975-09-24 |
1977-04-26 |
Bell Telephone Laboratories, Incorporated |
Interpolation-decimation circuit for increasing or decreasing digital sampling frequency
|
US4054753A
(en)
*
|
1975-10-20 |
1977-10-18 |
Digital Communications Corporation |
Double sync burst TDMA system
|
US4121158A
(en)
*
|
1975-10-24 |
1978-10-17 |
Siemens Aktiengesellschaft |
Radio system
|
US4020461A
(en)
*
|
1975-11-18 |
1977-04-26 |
Trw Inc. |
Method of and apparatus for transmitting and receiving coded digital signals
|
US4048443A
(en)
*
|
1975-12-12 |
1977-09-13 |
Bell Telephone Laboratories, Incorporated |
Digital speech communication system for minimizing quantizing noise
|
US4021616A
(en)
*
|
1976-01-08 |
1977-05-03 |
Ncr Corporation |
Interpolating rate multiplier
|
US4129749A
(en)
*
|
1976-06-24 |
1978-12-12 |
Goldman Stephen R |
Radio telephone communications system
|
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
|
DE2659635B2
(de)
|
1976-12-30 |
1979-06-13 |
Siemens Ag, 1000 Berlin Und 8000 Muenchen |
Verfahren zur digitalen Informationsübertragung fiber Funk
|
DE2659596C2
(de)
|
1976-12-30 |
1978-07-20 |
Siemens Ag, 1000 Berlin Und 8000 Muenchen |
Funkvermittlungssystem zwischen Funkstationen und Fernsprechteilnehmern
|
US4112372A
(en)
*
|
1977-01-11 |
1978-09-05 |
Texas Instruments Incorporated |
Spread spectrum communication system
|
DE2715332C2
(de)
|
1977-04-06 |
1985-08-01 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
System zur drahtlosen Übertragung von Digitalinformationen
|
US4100377A
(en)
*
|
1977-04-28 |
1978-07-11 |
Bell Telephone Laboratories, Incorporated |
Packet transmission of speech
|
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
|
US4143246A
(en)
|
1977-09-06 |
1979-03-06 |
Bell Telephone Laboratories, Incorporated |
Time division line interface circuit
|
US4397019A
(en)
|
1977-10-13 |
1983-08-02 |
Ibm Corporation |
TDMA Intertransponder communication
|
US4110560A
(en)
*
|
1977-11-23 |
1978-08-29 |
Gte Sylvania Incorporated |
Communication apparatus
|
FR2412987A1
(fr)
*
|
1977-12-23 |
1979-07-20 |
Ibm France |
Procede de compression de donnees relatives au signal vocal et dispositif mettant en oeuvre ledit procede
|
US4268722A
(en)
*
|
1978-02-13 |
1981-05-19 |
Motorola, Inc. |
Radiotelephone communications system
|
EP0003633B2
(en)
|
1978-02-13 |
1986-05-21 |
Motorola, Inc. |
A method of and an apparatus for a radiotelephone communications system
|
US4193031A
(en)
*
|
1978-03-13 |
1980-03-11 |
Purdue Research Foundation |
Method of signal transmission and reception utilizing wideband signals
|
US4222115A
(en)
*
|
1978-03-13 |
1980-09-09 |
Purdue Research Foundation |
Spread spectrum apparatus for cellular mobile communication systems
|
DE2812009C2
(de)
|
1978-03-18 |
1984-08-02 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Nachrichtenübertragungssystem
|
US4236254A
(en)
*
|
1978-03-27 |
1980-11-25 |
Motorola, Inc. |
Radio receiver blanker inhibit circuit
|
US4133976A
(en)
*
|
1978-04-07 |
1979-01-09 |
Bell Telephone Laboratories, Incorporated |
Predictive speech signal coding with reduced noise effects
|
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
|
US4357700A
(en)
*
|
1978-08-10 |
1982-11-02 |
International Business Machines Corp. |
Adaptive error encoding in multiple access systems
|
US4184049A
(en)
*
|
1978-08-25 |
1980-01-15 |
Bell Telephone Laboratories, Incorporated |
Transform speech signal coding with pitch controlled adaptive quantizing
|
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
|
US4301530A
(en)
*
|
1978-12-18 |
1981-11-17 |
The United States Of America As Represented By The Secretary Of The Army |
Orthogonal spread spectrum time division multiple accessing mobile subscriber access system
|
US4256925A
(en)
*
|
1978-12-12 |
1981-03-17 |
Satellite Business Systems |
Capacity reallocation method and apparatus for a TDMA satellite communication network with demand assignment of channels
|
US4215244A
(en)
*
|
1978-12-18 |
1980-07-29 |
The United States Of America As Represented By The Secretary Of The Army |
Self-adaptive mobile subscriber access system employing time division multiple accessing
|
US4220819A
(en)
*
|
1979-03-30 |
1980-09-02 |
Bell Telephone Laboratories, Incorporated |
Residual excited predictive speech coding system
|
CA1176336A
(en)
|
1979-04-23 |
1984-10-16 |
Motorola, Inc. |
Noise blanker which tracks average noise level
|
EP0018702A1
(en)
|
1979-04-30 |
1980-11-12 |
Motorola, Inc. |
Improvements in and relating to noise blanking circuitry in a radio receiver
|
GB2052216B
(en)
|
1979-06-08 |
1983-09-21 |
Plessey Co Ltd |
Duplex transceivers
|
US4309764A
(en)
*
|
1979-06-22 |
1982-01-05 |
Bell Telephone Laboratories, Incorporated |
Technique for increasing the rain margin of a satellite communication system
|
US4445213A
(en)
|
1979-07-31 |
1984-04-24 |
Bell Telephone Laboratories, Incorporated |
Communication line interface for controlling data information having differing transmission characteristics
|
GB2063011B
(en)
|
1979-11-09 |
1983-10-12 |
Philips Electronic Associated |
Information transmission system
|
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
|
NL190093C
(nl)
*
|
1979-12-17 |
1993-10-18 |
Victor Company Of Japan |
Comprimeer- en expandeerstelsel.
|
EP0035230B1
(en)
|
1980-02-29 |
1985-06-12 |
International Business Machines Corporation |
Time division multiple access broadcasting, multipoint, and conferencing communication apparatus and method
|
US4418409A
(en)
|
1980-03-07 |
1983-11-29 |
Ibm Corporation |
Byte data activity compression
|
DE3009309C2
(de)
|
1980-03-11 |
1982-06-24 |
Siemens AG, 1000 Berlin und 8000 München |
Mobiles Funknetz
|
US4507781A
(en)
|
1980-03-14 |
1985-03-26 |
Ibm Corporation |
Time domain multiple access broadcasting, multipoint, and conferencing communication apparatus and method
|
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
|
US4328585A
(en)
*
|
1980-04-02 |
1982-05-04 |
Signatron, Inc. |
Fast adapting fading channel equalizer
|
US4354057A
(en)
*
|
1980-04-08 |
1982-10-12 |
Bell Telephone Laboratories, Incorporated |
Predictive signal coding with partitioned quantization
|
US4488144A
(en)
|
1980-05-01 |
1984-12-11 |
Analogic Corporation |
High linearity digital to analog converter
|
NZ197059A
(en)
|
1980-05-23 |
1983-11-30 |
Post Office |
Nationwide radiopaging:selective zone transmissions
|
DE3023375C1
(ko)
|
1980-06-23 |
1987-12-03 |
Siemens Ag, 1000 Berlin Und 8000 Muenchen, De |
|
US4365338A
(en)
*
|
1980-06-27 |
1982-12-21 |
Harris Corporation |
Technique for high rate digital transmission over a dynamic dispersive channel
|
US4521891A
(en)
|
1980-07-07 |
1985-06-04 |
Sytek, Incorporated |
Multiple channel data communication system
|
DE3036655A1
(de)
|
1980-09-29 |
1982-05-13 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren zur erkennung von digitalinformation bei einer digitalen informationsuebertragung, insbesondere informationsuebertragung in mobilfunk-kommunikationssystemen
|
DE3036739A1
(de)
|
1980-09-29 |
1982-06-03 |
Siemens AG, 1000 Berlin und 8000 München |
Fernsprech-mobilfunksystem zur digitalen sprachuebertragung
|
US4503510A
(en)
|
1980-10-31 |
1985-03-05 |
Sri International |
Method and apparatus for digital data compression
|
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
|
IT1130545B
(it)
|
1980-12-03 |
1986-06-18 |
Cselt Centro Studi Lab Telecom |
Procedimento e sistema per l accesso ad un satellite per telecomunicazioni con communtazione a bordo
|
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
|
US4425639A
(en)
|
1981-01-12 |
1984-01-10 |
Bell Telephone Laboratories, Incorporated |
Satellite communications system with frequency channelized beams
|
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
|
FR2502426A1
(fr)
|
1981-03-20 |
1982-09-24 |
Trt Telecom Radio Electr |
Systeme de transmission d'informations entre une station principale et des stations secondaires operant selon un procede amrt
|
JPS57173232A
(en)
|
1981-04-17 |
1982-10-25 |
Hitachi Ltd |
Automatic equalizer
|
US4411007A
(en)
|
1981-04-29 |
1983-10-18 |
The Manitoba Telephone System |
Distributed network synchronization system
|
EP0064686B1
(de)
|
1981-05-07 |
1985-07-31 |
Alcatel N.V. |
Nachrichtenübertragungssystem
|
DE3118018A1
(de)
|
1981-05-07 |
1982-11-25 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Nachrichtenuebertragungssystem
|
JPS57201351A
(en)
|
1981-06-03 |
1982-12-09 |
Nec Corp |
Digital burst signal communicating system
|
US4414661A
(en)
|
1981-07-02 |
1983-11-08 |
Trancom Ab |
Apparatus for communicating with a fleet of vehicles
|
DE3130176A1
(de)
|
1981-07-30 |
1983-02-17 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren zur dynamischen zeitschlitzvergabe des organisationskanals zellularer mobilfunknetze in abhaengigkeit vom verkehrsaufkommen
|
US4418425A
(en)
|
1981-08-31 |
1983-11-29 |
Ibm Corporation |
Encryption using destination addresses in a TDMA satellite communications network
|
JPS5854740A
(ja)
|
1981-09-28 |
1983-03-31 |
Nec Corp |
周波数シンセサイザ
|
GB2109197B
(en)
|
1981-10-13 |
1985-12-04 |
Standard Telephones Cables Ltd |
Radio system
|
US4495619A
(en)
|
1981-10-23 |
1985-01-22 |
At&T Bell Laboratories |
Transmitter and receivers using resource sharing and coding for increased capacity
|
JPS5921039B2
(ja)
|
1981-11-04 |
1984-05-17 |
日本電信電話株式会社 |
適応予測符号化方式
|
USRE32580E
(en)
*
|
1981-12-01 |
1988-01-19 |
American Telephone And Telegraph Company, At&T Bell Laboratories |
Digital speech coder
|
US4472832A
(en)
|
1981-12-01 |
1984-09-18 |
At&T Bell Laboratories |
Digital speech coder
|
US4449250A
(en)
|
1981-12-21 |
1984-05-15 |
Motorola, Inc. |
Radio-frequency synthesizer for duplex radios
|
US4455649A
(en)
|
1982-01-15 |
1984-06-19 |
International Business Machines Corporation |
Method and apparatus for efficient statistical multiplexing of voice and data signals
|
US4437087A
(en)
|
1982-01-27 |
1984-03-13 |
Bell Telephone Laboratories, Incorporated |
Adaptive differential PCM coding
|
JPS58141059A
(ja)
|
1982-02-15 |
1983-08-22 |
Nec Corp |
多値デイジタル無線通信方式
|
US4466129A
(en)
|
1982-05-06 |
1984-08-14 |
Motorola, Inc. |
Noise reducing circuitry for single sideband receivers
|
CA1191905A
(en)
|
1982-06-30 |
1985-08-13 |
Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee |
Spread spectrum modem
|
DE3224922A1
(de)
|
1982-07-03 |
1984-01-05 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Nachrichtenuebertragungssystem
|
US4651104A
(en)
|
1982-07-07 |
1987-03-17 |
Fujitsu Limited |
Frequency converter with automatic frequency control
|
US4489413A
(en)
|
1982-07-19 |
1984-12-18 |
M/A-Com Dcc, Inc. |
Apparatus for controlling the receive and transmit frequency of a transceiver
|
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
|
GB2125654B
(en)
|
1982-08-13 |
1986-01-29 |
Hazeltine Corp |
Intranetwork code division multiple access communication system
|
US4550443A
(en)
|
1982-11-12 |
1985-10-29 |
Motorola, Inc. |
Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system
|
US4597105A
(en)
|
1982-11-12 |
1986-06-24 |
Motorola Inc. |
Data communications system having overlapping receiver coverage zones
|
FR2536610A1
(fr)
|
1982-11-23 |
1984-05-25 |
Cit Alcatel |
Equipement de transmission synchrone de donnees
|
US4625308A
(en)
|
1982-11-30 |
1986-11-25 |
American Satellite Company |
All digital IDMA dynamic channel allocated satellite communications system and method
|
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
|
US4562572A
(en)
|
1983-01-11 |
1985-12-31 |
International Telephone And Telegraph Corporation |
Cellular mobile radio service telephone system
|
DE3302828A1
(de)
|
1983-01-28 |
1984-08-02 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Empfangsgeraet
|
JPS59181734A
(ja)
|
1983-03-30 |
1984-10-16 |
Nec Corp |
無線電話方式
|
GB2138652B
(en)
|
1983-04-23 |
1986-04-23 |
Standard Telephones Cables Ltd |
Distributed pabx
|
US4513412A
(en)
|
1983-04-25 |
1985-04-23 |
At&T Bell Laboratories |
Time division adaptive retransmission technique for portable radio telephones
|
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
|
US4531235A
(en)
|
1983-06-20 |
1985-07-23 |
Motorola, Inc. |
Diversity signal strength indicator and site selection apparatus for using same
|
US4519073A
(en)
|
1983-06-20 |
1985-05-21 |
At&T Bell Laboratories |
Bit compression multiplexer
|
JPS6027241A
(ja)
|
1983-07-25 |
1985-02-12 |
Nec Corp |
無線中継方式のバツテリセ−ビング方式
|
US4567591A
(en)
|
1983-08-01 |
1986-01-28 |
Gray James S |
Digital audio satellite transmission system
|
CA1227844A
(en)
|
1983-09-07 |
1987-10-06 |
Michael T.H. Hewitt |
Communications network having a single node and a plurality of outstations
|
DE3332220C1
(de)
|
1983-09-07 |
1985-02-28 |
Rohde & Schwarz GmbH & Co KG, 8000 München |
Zeitverdichtendes Zeitmultiplex-Übertragungssystem
|
US4510595A
(en)
|
1983-10-03 |
1985-04-09 |
At&T Bell Laboratories |
Modified time-division transmission technique for digital mobile radio systems
|
EP0139034B1
(de)
|
1983-10-21 |
1988-01-13 |
ANT Nachrichtentechnik GmbH |
Verfahren zum Übertragen von Nachrichtendiensten über Satelliten
|
US4578815A
(en)
|
1983-12-07 |
1986-03-25 |
Motorola, Inc. |
Wide area coverage radio communication system and method
|
FR2556532B1
(fr)
|
1983-12-09 |
1986-10-24 |
Trt Telecom Radio Electr |
Procede de radiocommunication bidirectionnelle entre des stations fixes et des stations mobiles
|
GB2151436A
(en)
|
1983-12-09 |
1985-07-17 |
Philips Electronic Associated |
Duplex speech transmission method and a system therefor
|
US4599490A
(en)
|
1983-12-19 |
1986-07-08 |
At&T Bell Laboratories |
Control of telecommunication switching systems
|
US4630267A
(en)
|
1983-12-23 |
1986-12-16 |
International Business Machines Corporation |
Programmable timing and synchronization circuit for a TDMA communications controller
|
US4550424A
(en)
|
1984-02-09 |
1985-10-29 |
National Semiconductor Corporation |
PM Decoder sample and hold circuit
|
US4644535A
(en)
|
1984-04-26 |
1987-02-17 |
Data General Corp. |
PCM channel multiplexer/demultiplexer
|
US4709390A
(en)
|
1984-05-04 |
1987-11-24 |
American Telephone And Telegraph Company, At&T Bell Laboratories |
Speech message code modifying arrangement
|
DE3417233A1
(de)
|
1984-05-10 |
1985-11-14 |
Standard Elektrik Lorenz Ag, 7000 Stuttgart |
Funksystem
|
US4608711A
(en)
|
1984-06-21 |
1986-08-26 |
Itt Corporation |
Cellular mobile radio hand-off utilizing voice channel
|
US4613990A
(en)
|
1984-06-25 |
1986-09-23 |
At&T Bell Laboratories |
Radiotelephone transmission power control
|
US4742550A
(en)
|
1984-09-17 |
1988-05-03 |
Motorola, Inc. |
4800 BPS interoperable relp system
|
US5051991A
(en)
|
1984-10-17 |
1991-09-24 |
Ericsson Ge Mobile Communications Inc. |
Method and apparatus for efficient digital time delay compensation in compressed bandwidth signal processing
|
US4622680A
(en)
|
1984-10-17 |
1986-11-11 |
General Electric Company |
Hybrid subband coder/decoder method and apparatus
|
US4771425A
(en)
|
1984-10-29 |
1988-09-13 |
Stratacom, Inc. |
Synchoronous packet voice/data communication system
|
IT1179803B
(it)
|
1984-10-30 |
1987-09-16 |
Cselt Centro Studi Lab Telecom |
Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio
|
DE3443974A1
(de)
|
1984-12-01 |
1986-06-05 |
Robert Bosch Gmbh, 7000 Stuttgart |
Verfahren zum uebertragen von digitalen informationen in einem funktelefonnetz
|
US4639914A
(en)
|
1984-12-06 |
1987-01-27 |
At&T Bell Laboratories |
Wireless PBX/LAN system with optimum combining
|
DE3502942A1
(de)
|
1985-01-30 |
1986-07-31 |
ANT Nachrichtentechnik GmbH, 7150 Backnang |
Digitales mobilfunksystem
|
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
|
DE3527330A1
(de)
|
1985-07-31 |
1987-02-05 |
Philips Patentverwaltung |
Digitales funkuebertragungssystem mit verbindungsbegleitenden organisationskanal im zeitmultiplexrahmen
|
US4755994A
(en)
|
1985-09-06 |
1988-07-05 |
Republic Telcom Systems Corporation |
Capacity expander for telephone line
|
US4825448A
(en)
|
1986-08-07 |
1989-04-25 |
International Mobile Machines Corporation |
Subscriber unit for wireless digital telephone system
|
US4864566A
(en)
|
1986-09-26 |
1989-09-05 |
Cycomm Corporation |
Precise multiplexed transmission and reception of analog and digital data through a narrow-band channel
|
US4777633A
(en)
|
1987-08-14 |
1988-10-11 |
International Mobile Machines Corp. |
Base station for wireless digital telephone system
|
US4912270A
(en)
|
1987-03-13 |
1990-03-27 |
Allied-Signal Inc. |
Chromia aerogel, method of producing same and fluorination process utilizing same
|
US4890315A
(en)
*
|
1987-03-20 |
1989-12-26 |
Orion Industries, Inc. |
Cellular remote station with multiple coupled units
|
US4741018A
(en)
|
1987-04-24 |
1988-04-26 |
Motorola, Inc. |
Speakerphone using digitally compressed audio to control voice path gain
|
US4843621A
(en)
|
1987-04-24 |
1989-06-27 |
Motorola, Inc. |
Speakerphone using digitally compressed audio to detect acoustic feedback
|
US4797947A
(en)
|
1987-05-01 |
1989-01-10 |
Motorola, Inc. |
Microcellular communications system using macrodiversity
|
JPS63283241A
(ja)
|
1987-05-15 |
1988-11-21 |
Toshiba Corp |
移動通信システム
|
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
|
US4811420A
(en)
*
|
1987-07-08 |
1989-03-07 |
International Mobile Machines Corporation |
Initialization of communication channel between a subsciber station and a base station in a subscriber communication system
|
US4785450B1
(en)
*
|
1987-08-06 |
1999-10-12 |
Interdigital Tech Corp |
Apparatus and method for obtaining frequency agility in digital communication system
|
US4866710A
(en)
*
|
1988-02-22 |
1989-09-12 |
Motorola, Inc. |
Reuse groups for scan monitoring in digital cellular systems
|
FR2630277B1
(fr)
|
1988-04-15 |
1992-10-16 |
Thomson Csf |
Procede de codage et de decodage d'informations, par blocs, et dispositifs de codage et de decodage, pour la mise en oeuvre de ce procede
|
US5124985A
(en)
|
1988-12-13 |
1992-06-23 |
Small Power Communication Systems Research Laboratories Co., Ltd. |
Radiocommunication system using time-division digital frames
|
US4974099A
(en)
|
1989-06-21 |
1990-11-27 |
International Mobile Machines Corporation |
Communication signal compression system and method
|
US5008900A
(en)
*
|
1989-08-14 |
1991-04-16 |
International Mobile Machines Corporation |
Subscriber unit for wireless digital subscriber communication system
|
JP3093243B2
(ja)
*
|
1990-07-12 |
2000-10-03 |
株式会社東芝 |
移動無線通信システム
|
GB2246490A
(en)
*
|
1990-07-23 |
1992-01-29 |
Philips Electronic Associated |
Fdm-tdd cordless telephone system measures channel quality for handover
|
US5297192A
(en)
*
|
1990-09-28 |
1994-03-22 |
At&T Bell Laboratories |
Method and apparatus for remotely programming a mobile data telephone set
|
FR2667466A1
(fr)
|
1990-10-02 |
1992-04-03 |
Europ Agence Spatiale |
Demodulateur multiporteuses.
|
US5287351A
(en)
|
1990-11-27 |
1994-02-15 |
Scientific-Atlanta, Inc. |
Method and apparatus for minimizing error propagation in correlative digital and communication system
|
DE4107660C2
(de)
|
1991-03-09 |
1995-05-04 |
Bosch Gmbh Robert |
Verfahren zur Montage von Silizium-Plättchen auf metallischen Montageflächen
|
US5796727A
(en)
*
|
1993-04-30 |
1998-08-18 |
International Business Machines Corporation |
Wide-area wireless lan access
|
JPH08501919A
(ja)
*
|
1993-07-21 |
1996-02-27 |
モトローラ・インコーポレイテッド |
Rf通信システムにおいてデータおよびファクシミリ・サービスを提供するための装置および方法
|
US5363375A
(en)
|
1993-07-30 |
1994-11-08 |
Bell Communications Research, Inc. |
Method and apparatus for synchronizing timing among radio ports in wireless communications systems using hierarchical scheme
|
US5546383A
(en)
*
|
1993-09-30 |
1996-08-13 |
Cooley; David M. |
Modularly clustered radiotelephone system
|
US5455821A
(en)
*
|
1994-11-10 |
1995-10-03 |
Motorola, Inc. |
Communication system resource allocation method
|
US6324267B1
(en)
*
|
1997-01-17 |
2001-11-27 |
Scientific-Atlanta, Inc. |
Two-tiered authorization and authentication for a cable data delivery system
|