MX161741A - Sistema mejorado de comunicaciones de frecuencia modulada - Google Patents

Sistema mejorado de comunicaciones de frecuencia modulada

Info

Publication number: MX161741A
Authority: MX; Mexico
Prior art keywords: communication system; frequency communication; modulated frequency; improved modulated; improved
Prior art date: 1987-08-28

Application number

MX9122A

Other languages

English (en)

Inventor

Bruce Charles Eastmond

Elliott Wai Leon Lum

Donald Laverne Linder

Original Assignee

Motorola 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.)

1987-08-28

Filing date

1987-11-03

Publication date

1990-12-20

1987-08-28 Priority claimed from US07/091,160 external-priority patent/US4893349A/en

1987-11-03 Application filed by Motorola Inc filed Critical Motorola Inc

1990-12-20 Publication of MX161741A publication Critical patent/MX161741A/es

Links

Classifications

- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
- H03G3/344—Muting responsive to the amount of noise (noise squelch)
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Noise Elimination (AREA)

MX9122A 1987-08-28 1987-11-03 Sistema mejorado de comunicaciones de frecuencia modulada MX161741A (es)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US07/091,160 US4893349A (en)	1986-04-03	1987-08-28	FM communication system with improved response to rayleigh-faded received signals
US07/090,982 US4893347A (en)	1986-04-03	1987-08-28	FM communication system with improved response to Rayleigh-faded companded signals

Publications (1)

Publication Number	Publication Date
MX161741A true MX161741A (es)	1990-12-20

Family

ID=26782844

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
MX9122A MX161741A (es)	1987-08-28	1987-11-03	Sistema mejorado de comunicaciones de frecuencia modulada

Country Status (7)

Country	Link
EP (1)	EP0380475A4 (es)
JP (1)	JP2660858B2 (es)
KR (1)	KR960011122B1 (es)
BR (1)	BR8707993A (es)
FI (1)	FI900722A0 (es)
MX (1)	MX161741A (es)
WO (1)	WO1989002198A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3936888C1 (es) *	1989-11-06	1991-05-23	Stabo Elektronik Gmbh & Co Kg, 3200 Hildesheim, De
EP0691050B1 (de) *	1993-03-24	1996-12-18	Blaupunkt-Werke GmbH	Schaltungsanordnung zur ableitung von signalen zur maskierung von audiosignalen
EP1249734B1 (en) *	2001-04-11	2012-04-18	Fujitsu Semiconductor Limited	Rectangle/lattice data conversion method for charged particle beam exposure mask pattern and charged particle beam exposure method
WO2009138125A1 (en) *	2008-05-15	2009-11-19	Telefonaktiebolaget Lm Ericsson (Publ)	Wcdma agc receiver snr adjustment and signalling

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4123711A (en) *	1977-01-24	1978-10-31	Canadian Patents And Development Limited	Synchronized compressor and expander voice processing system for radio telephone
DE2909520C3 (de) *	1979-03-10	1981-12-03	Philips Patentverwaltung Gmbh, 2000 Hamburg	Schaltungsanordnung zur Dämpfung von Störgeräuschen
JPS5646352U (es) *	1979-09-17	1981-04-25
JPS5742240A (en) *	1980-08-28	1982-03-09	Nec Corp	Squeltch circuit
US4403348A (en) *	1981-09-21	1983-09-06	Bell Telephone Laboratories, Incorporated	Single sideband receiver with intersyllabic gain correction limit control
DE3343224A1 (de) *	1983-11-30	1985-06-05	Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover	Rundfunkempfangsgeraet
NL8402321A (nl) *	1984-07-23	1986-02-17	Philips Nv	Storingsdetektor.

1987
- 1987-11-03 MX MX9122A patent/MX161741A/es unknown
- 1987-12-24 KR KR1019890700734A patent/KR960011122B1/ko not_active IP Right Cessation
- 1987-12-24 BR BR8707993A patent/BR8707993A/pt not_active IP Right Cessation
- 1987-12-24 WO PCT/US1987/003420 patent/WO1989002198A1/en not_active Application Discontinuation
- 1987-12-24 JP JP63501253A patent/JP2660858B2/ja not_active Expired - Fee Related
- 1987-12-24 EP EP19880900985 patent/EP0380475A4/en not_active Withdrawn
1990
- 1990-02-14 FI FI900722A patent/FI900722A0/fi not_active IP Right Cessation

Also Published As

Publication number	Publication date
KR960011122B1 (ko)	1996-08-20
EP0380475A1 (en)	1990-08-08
WO1989002198A1 (en)	1989-03-09
JP2660858B2 (ja)	1997-10-08
JPH02502418A (ja)	1990-08-02
FI900722A0 (fi)	1990-02-14
EP0380475A4 (en)	1991-09-25
KR890702342A (ko)	1989-12-23
BR8707993A (pt)	1990-05-22

Publication	Publication Date	Title
DE3788537D1 (de)	1994-02-03	Symmetrischer doppelt-optischer Signalempfänger.
DE3787787D1 (de)	1993-11-18	Kommunikationssystem.
DE3751327D1 (de)	1995-07-06	Funksystem.
DE69030851D1 (de)	1997-07-10	Kommunikationssystem
DE3876142D1 (de)	1993-01-07	Kommunikationsstoersender.
DE3673176D1 (de)	1990-09-13	Doppelfrequenzantennensystem.
BR8406450A (pt)	1985-03-12	Sistema de radiotransmissao de frequencia modulada estereofonico
KR890003644U (ko)	1989-04-13	마이크로파 수신장치
DE3873190D1 (de)	1992-09-03	Kommunikationssystem.
DE69030033D1 (de)	1997-04-10	Verbessertes Kommunikationssystem
IT1205753B (it)	1989-03-31	Sistema di trasmissione via telefono
DE3686963D1 (de)	1992-11-19	Funkuebertragungssystem.
FI890052A (fi)	1989-01-05	Signalljus foer flygfaelt.
BR8701012A (pt)	1987-12-29	Sistema de comunicacao
DE3881724D1 (de)	1993-07-22	Kommunikationssystem.
KR880702019A (ko)	1988-11-07	라디오 ssb 통신 시스템
DK110387A (da)	1988-09-04	Kommunikationsanlaeg
DE3686326D1 (de)	1992-09-10	Mikrowellen-sende/empfangsvorrichtung.
DK608087A (da)	1988-05-21	Amplitudemoduleret radiosender
MX161741A (es)	1990-12-20	Sistema mejorado de comunicaciones de frecuencia modulada
DK142787A (da)	1987-09-20	Kommunikationsanlaeg
DE3850727D1 (de)	1994-08-25	Antennensystem.
DK634187D0 (da)	1987-12-02	Radiotransmissionssystem
NL192945B (nl)	1998-01-05	Frequentiemodulatie-ontvanger.
BR8702708A (pt)	1987-12-08	Sistema de comunicacao de dados via emissoras de frequencia modulada