MX9605738A - Transmisor-receptor inalambrico portail, arreglado para proporcionar aislamiento entre las señales de radiofrecuencia y las señales de audio. - Google Patents

Transmisor-receptor inalambrico portail, arreglado para proporcionar aislamiento entre las señales de radiofrecuencia y las señales de audio.

Info

Publication number
MX9605738A
MX9605738A MX9605738A MX9605738A MX9605738A MX 9605738 A MX9605738 A MX 9605738A MX 9605738 A MX9605738 A MX 9605738A MX 9605738 A MX9605738 A MX 9605738A MX 9605738 A MX9605738 A MX 9605738A
Authority
MX
Mexico
Prior art keywords
radio frequency
portable transceiver
audio
audio signals
wireless portable
Prior art date
Application number
MX9605738A
Other languages
English (en)
Inventor
George L Ricardo
William Davis Simmons
Bernie Dee Tull Jr
Original Assignee
At & T 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
Application filed by At & T Corp filed Critical At & T Corp
Publication of MX9605738A publication Critical patent/MX9605738A/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
    • H04B1/38—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
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • 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
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters
    • H04B1/0346—Hand-held transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Transceivers (AREA)

Abstract

Se describe un transmisor-receptor portátil inalámbrico, en donde la modulacion de transicion o cruzada entre los circuitos de radiofrecuencia y los circuitos de audio se minimiza en un transmisor-receptor portátil inalámbrico al ubicar todos los circuitos de audio en una primera seccion del transmisor-receptor portátil y todos los circuitos de radiofrecuencia en una segunda seccion, separada del transmisor-receptor portátil. En vista de las consideraciones de modalidad en los transmisores-receptores portátiles pequeños, una señal de audio es ya sea irradiada o recibida en la vecindad de los circuitos de radiofrecuencia. El aislamiento de la señal de audio se consigue al encauzar esta señal mientras que se encuentra en forma acustica. Puesto que las señales de audio en una forma eléctrica no son encauzadas alrededor o cerca de los circuitos de radiofrecuencia, la modulacion de transicion o cruzadas no se presenta entre los circuitos de radiofrecuencia y los circuitos de radiofrecuencia y los circuitos de audio.
MX9605738A 1995-11-30 1996-11-21 Transmisor-receptor inalambrico portail, arreglado para proporcionar aislamiento entre las señales de radiofrecuencia y las señales de audio. MX9605738A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/565,530 US5884197A (en) 1995-11-30 1995-11-30 Wireless portable transceiver arranged for providing isolation between radio frequency and audio signals

Publications (1)

Publication Number Publication Date
MX9605738A true MX9605738A (es) 1997-05-31

Family

ID=24259035

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9605738A MX9605738A (es) 1995-11-30 1996-11-21 Transmisor-receptor inalambrico portail, arreglado para proporcionar aislamiento entre las señales de radiofrecuencia y las señales de audio.

Country Status (3)

Country Link
US (1) US5884197A (es)
CA (1) CA2184771C (es)
MX (1) MX9605738A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6101402A (en) * 1997-09-04 2000-08-08 Ericcson Inc. Radiotelephone with sliding acoustic member
CN1113519C (zh) * 1997-10-01 2003-07-02 日本电气株式会社 便携无线电通信装置
US6496685B2 (en) * 1998-06-15 2002-12-17 Qualcomm, Incorporated Portable phone with imbedded battery
US6470176B1 (en) * 1999-11-04 2002-10-22 Ericsson Inc. Battery packs that facilitate acoustic communications and radiotelephones incorporating same
US7365766B1 (en) * 2000-08-21 2008-04-29 Marie Lapalme Video-assisted apparatus for hearing impaired persons
TW572491U (en) * 2002-11-29 2004-01-11 Delta Electronics Inc Connection module of optical transceiver
TWI285978B (en) * 2005-12-09 2007-08-21 Mitac Technology Corp Wireless signal transceiver unit with rotating mechanism for adjusting antenna direction thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3681579A (en) * 1970-10-20 1972-08-01 Hughes Aircraft Co Non-interacting complementary coding system
NO851937L (no) * 1984-05-24 1985-11-25 Siemens Ag Flat kapsel for radioapparat.
US4680676A (en) * 1986-01-06 1987-07-14 Motorola, Inc. Portable radio housing with logic and RF shielding
JPH0356255U (es) * 1989-06-29 1991-05-30
JP2887956B2 (ja) * 1991-07-11 1999-05-10 日本電気株式会社 携帯無線機
US5226076A (en) * 1993-02-28 1993-07-06 At&T Bell Laboratories Directional microphone assembly
JP2661499B2 (ja) * 1993-03-08 1997-10-08 関西日本電気株式会社 チューナユニット
US5539834A (en) * 1994-11-03 1996-07-23 At&T Corp. Baffled microphone assembly
US5555449A (en) * 1995-03-07 1996-09-10 Ericsson Inc. Extendible antenna and microphone for portable communication unit

Also Published As

Publication number Publication date
US5884197A (en) 1999-03-16
CA2184771C (en) 2000-08-29
CA2184771A1 (en) 1997-05-31

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