CA2016333A1 - Cellular telephone operable on different cellular telephone systems - Google Patents

Cellular telephone operable on different cellular telephone systems

Info

Publication number
CA2016333A1
CA2016333A1 CA2016333A CA2016333A CA2016333A1 CA 2016333 A1 CA2016333 A1 CA 2016333A1 CA 2016333 A CA2016333 A CA 2016333A CA 2016333 A CA2016333 A CA 2016333A CA 2016333 A1 CA2016333 A1 CA 2016333A1
Authority
CA
Canada
Prior art keywords
cellular telephone
dual
operable
different
systems
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
CA2016333A
Other languages
French (fr)
Other versions
CA2016333C (en
Inventor
Ali Pireh
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
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.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of CA2016333A1 publication Critical patent/CA2016333A1/en
Application granted granted Critical
Publication of CA2016333C publication Critical patent/CA2016333C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

CELLULAR TELEPHONE
OPERABLE ON DIFFERENT CELLULAR TELEPHONE SYSTEMS

Abstract of the Disclosure A unique dual-system cellular telephone includes a transceiver (100) having a dual bandwidth receiver, an audio/logic unit (200) having dual control programs, and a handset unit (300). The dual bandwidth receiver of the transceiver (100) has different filters (408 and 410) in the intermediate frequency section thereof which are switchably selected depending on which cellular telephone system is available. When service is not available in one of the cellular telephone systems, the unique cellular telephone automatically switches the receiver bandwidth and control program for operating on the other cellular telephone system.
CA002016333A 1989-06-23 1990-05-09 Cellular telephone operable on different cellular telephone systems Expired - Lifetime CA2016333C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37067589A 1989-06-23 1989-06-23
US370,675 1995-01-10

Publications (2)

Publication Number Publication Date
CA2016333A1 true CA2016333A1 (en) 1990-12-23
CA2016333C CA2016333C (en) 1994-04-26

Family

ID=23460683

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002016333A Expired - Lifetime CA2016333C (en) 1989-06-23 1990-05-09 Cellular telephone operable on different cellular telephone systems

Country Status (2)

Country Link
JP (1) JP2523046B2 (en)
CA (1) CA2016333C (en)

Also Published As

Publication number Publication date
JP2523046B2 (en) 1996-08-07
JPH0335626A (en) 1991-02-15
CA2016333C (en) 1994-04-26

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Effective date: 20100509