Automatic handoff for wireless piconet multimode cell phone
First Claim
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1. A multimode cell phone, comprising:
- a cell phone functionality; and
an RF communication functionality separate, at least in part, from said cell phone functionality; and
an automatic switch over module, in communication with both said cell phone functionality and said RF communication functionality, operable to switch a communication path established on one of said cell phone functionality and said RF communication functionality, with another communication path later established on the other of said cell phone functionality and said RF communication functionality.
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Abstract
A technique and apparatus for transferring a communication link between two different modes of a multimode cell phone. For instance, an active telephone call using a cordless telephone RF communication link may be automatically switched (with user prompt if desired) to a cell phone call when desired (e.g., when the cordless telephone goes out of range of its base unit), and vice versa. CallerlD Type 2 and Call Waiting may be used to switch the far end telephone from one line to the other with minimal (or even unnoticeable) disruption to the participants or content of the telephone connection.
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Citations
19 Claims
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1. A multimode cell phone, comprising:
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a cell phone functionality; and
an RF communication functionality separate, at least in part, from said cell phone functionality; and
an automatic switch over module, in communication with both said cell phone functionality and said RF communication functionality, operable to switch a communication path established on one of said cell phone functionality and said RF communication functionality, with another communication path later established on the other of said cell phone functionality and said RF communication functionality. - View Dependent Claims (2, 3)
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4. A method of automatically switching between a first type RF communication link and a second type RF communication link different from said first type RF communication link, comprising:
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participating in said first type RF communication link;
sensing an availability of said second type RF communication link;
establishing said second type RF communication link while said first type RF communication link remains active; and
switching parties participating in said first type RF communication link to active utilization of said second type RF communication link. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19)
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12. Apparatus for automatically switching between a first type RF communication link and a second type RF communication link different from said first type RF communication link, comprising:
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means for participating in said first type RF communication link;
means for sensing an availability of said second type RF communication link;
means for establishing said second type RF communication link, when said second type RF communication link is sensed to be available by said means for sensing; and
means for switching parties participating in said first type RF communication link to active utilization of said second type RF communication link.
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Specification
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Current AssigneeBell Northern Research, LLC (Hilco Inc. (d/b/a Hilco Global))
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Original AssigneeAgere Systems Guardian Corp. (Broadcom, Inc.)
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InventorsMooney, Philip D.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current455/553.1
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CPC Class CodesH04M 1/725 Cordless telephones user in...
