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United States Patent | 5,588,041 |
Meyer, Jr. , et al. | December 24, 1996 |
A cellular speakerphone (100) includes a housing (101) containing a transceiver circuit (203), a processor and switching circuit (205), a coupler (209), and a hands-free user interface (207). The processor and switching circuit (205) and the hands-free user interface (207) operate the cellular speakerphone (100) in a default hands-free mode that is automatically interruptable to permit the cellular speakerphone (100) to operate in a handset mode when an optional handset (127) is operably coupled to the cellular speakerphone (100) via the coupler (209).
Inventors: | Meyer, Jr.; George W. (Buffalo Grove, IL), Wong; Allen (Streamwood, IL), Spears; John H. (McHenry, IL), Bond; David L. (Hoffman Estates, IL), Vondrak; Thomas F. (Libertyville, IL) |
Assignee: |
Motorola, Inc.
(Schaumburg,
IL)
|
Appl. No.: | 08/369,021 |
Filed: | January 5, 1995 |
Current U.S. Class: | 455/569.2 ; 379/388.01; 379/420.01; 379/432 |
Current International Class: | H04M 1/60 (20060101); H04Q 007/32 () |
Field of Search: | 379/58,59,420,421,432,433 455/89,90 |
4741018 | April 1988 | Potratz et al. |
4843621 | June 1989 | Potratz |
4991197 | February 1991 | Morris |
5018188 | May 1991 | Kowalski et al. |
5224151 | June 1993 | Bowen et al. |
5261121 | November 1993 | Hashimoto |
Northern Telecom, Meridian Business Set M5312, User's Guide, 1989. . American Honda Motor Co., Cellular Telephone, User's Manual, Aug. 1994. . JRC Canada, Inc., JRC International Inc., Integrated Cellular Telephone Model ICT-8820, User's Guide, Jun. 1994. . Uniden America Corporation, CP 1700 Cellular Telephone Operating Guide, 1994. . Motorola, Inc. Cellular Subscriber Group, Cellular Mobile and Carry Phone Accessory, NAM Programming Guide, 1993. . Motorola, Inc. Pan American Cellular Subscriber Group, Cellular Mobile and Carry Phone Accessory, Installation Manual, 1993. . Motorola, Inc. Pan American Cellular Subsriber Group, cellular telephone user's manual, 1993.. |