CA2156634A1 - Power Adapter with Integral Radio Frequency Port - Google Patents

Power Adapter with Integral Radio Frequency Port

Info

Publication number
CA2156634A1
CA2156634A1 CA2156634A CA2156634A CA2156634A1 CA 2156634 A1 CA2156634 A1 CA 2156634A1 CA 2156634 A CA2156634 A CA 2156634A CA 2156634 A CA2156634 A CA 2156634A CA 2156634 A1 CA2156634 A1 CA 2156634A1
Authority
CA
Canada
Prior art keywords
communication device
antenna
external
power adapter
cable
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.)
Granted
Application number
CA2156634A
Other languages
French (fr)
Other versions
CA2156634C (en
Inventor
David M. Demuro
Mike M. Albert
John A. Kalenowsky
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.)
Motorola Solutions Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2156634A1 publication Critical patent/CA2156634A1/en
Application granted granted Critical
Publication of CA2156634C publication Critical patent/CA2156634C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04B1/3877—Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters
    • 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
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
    • 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
    • H04M1/727—Identification code transfer arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Aerials (AREA)

Abstract

The present invention provides a power adapter (10) adapted to couple an external antenna (17) to a communication device (30) by way of a cable (12) which is typically plugged into a cigarette lighter of a vehicle or some other power source at one end, and an input connector of the communication device (30) at the other. In particular, the present invention provides a simple one-piece vehicle power adapter which also provides RF input/output capability for connection to an external vehicle antenna. According to certain aspects of the invention, the adapter can be configured to have a variety of selection mechanisms. For example, the communication device could include an RF switch (34) and control circuitry for selecting either the internal or external antenna for optimum reception. Alternatively, the cable could include an external switch (70) for allowing the user to select the desired antenna.
Finally, the cable could include a component which automatically actuates the switch to select the external antenna when the external antenna is connected to the communication device.
CA002156634A 1994-01-06 1994-12-05 Power adapter with integral radio frequency port Expired - Fee Related CA2156634C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17819894A 1994-01-06 1994-01-06
US08/178,198 1994-01-06
PCT/US1994/013946 WO1995019069A1 (en) 1994-01-06 1994-12-05 Power adapter with integral radio frequency port

Publications (2)

Publication Number Publication Date
CA2156634A1 true CA2156634A1 (en) 1995-07-13
CA2156634C CA2156634C (en) 2000-04-18

Family

ID=22651614

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002156634A Expired - Fee Related CA2156634C (en) 1994-01-06 1994-12-05 Power adapter with integral radio frequency port

Country Status (9)

Country Link
AU (1) AU678886B2 (en)
BR (1) BR9405795A (en)
CA (1) CA2156634C (en)
ES (1) ES2130898B1 (en)
FR (1) FR2714776A1 (en)
GB (1) GB2292022B (en)
IT (1) IT1277301B1 (en)
TW (1) TW270246B (en)
WO (1) WO1995019069A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4109988A (en) * 1977-07-15 1978-08-29 Olson Ernest E Duplex outlet device
US4761823A (en) * 1986-09-05 1988-08-02 E. F. Johnson Company Communications adaptor bracket
JPS648733A (en) * 1987-06-30 1989-01-12 Mitsubishi Electric Corp Portable radio communication equipment
CA2010536A1 (en) * 1989-02-22 1990-08-22 Paul L. Camwell Booster system for hand-held radiotelephone
JPH0681086B2 (en) * 1989-03-31 1994-10-12 三菱電機株式会社 Mobile radio
AU639010B2 (en) * 1989-08-11 1993-07-15 Nec Corporation Portable radio transceiver system having improved adaptor for transceiver and/or improved receive signal control arrangement
WO1992014328A1 (en) * 1991-02-05 1992-08-20 Profinor Sa Telecommunication equipment

Also Published As

Publication number Publication date
ITRM950002A1 (en) 1996-07-02
IT1277301B1 (en) 1997-11-05
AU1511595A (en) 1995-08-01
ES2130898A1 (en) 1999-07-01
AU678886B2 (en) 1997-06-12
BR9405795A (en) 1995-12-12
ES2130898B1 (en) 2000-02-01
FR2714776A1 (en) 1995-07-07
GB9518131D0 (en) 1995-11-08
GB2292022A (en) 1996-02-07
ITRM950002A0 (en) 1995-01-02
TW270246B (en) 1996-02-11
WO1995019069A1 (en) 1995-07-13
GB2292022B (en) 1997-07-30
CA2156634C (en) 2000-04-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20021205