Cordless telephone network
First Claim
1. A cordless telephone network including a hand-held unit having a memorized distinctive ID code and including a cordless telephone transmitter/receiver means for cordlessly communicating 2-way calls between said hand-held unit and any one of a plurality of base units, said any one of said base units and said hand-held unit including a means for scanning a plurality of cordless telephone channels when said hand-held unit is making a call and when it is receiving a call, said hand-held unit further including a means for monitoring said plurality of channels during said scanning to determine if its hand-held unit ID code is transmitted on any one of said channels when said hand-held unit is receiving a call, and for determining if a base unit is transmitting a channel clear signal when said hand-held unit is making a call;
- said network further comprising a plurality of base units each including a means for transmitting a channel clear signal.
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Accused Products
Abstract
A cordless telephone network comprises a base unit (12) that is interconnected into a normal telephone network (19) and a plurality of hand-held cordless telephones (20). Each of the hand-held cordless telephones has a distinctive identification code and the base unit temporarily stores the identification code of the hand-held unit with which it is communicating during a call and will not communicate with other hand-held units having different identification codes during that call. Each of the hand-held units has the ability to scan a plurality of cordless telephone channels for either receiving a call on a channel on which its identification code is transmitted or placing a call on a channel on which a base unit transmits a "free-channel" signal. The hand-held units each have a voice activation/deactivation circuit which allows the hand-held unit to send and receive audio signals only when it has been given permission to do so by a base unit.
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Citations
12 Claims
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1. A cordless telephone network including a hand-held unit having a memorized distinctive ID code and including a cordless telephone transmitter/receiver means for cordlessly communicating 2-way calls between said hand-held unit and any one of a plurality of base units, said any one of said base units and said hand-held unit including a means for scanning a plurality of cordless telephone channels when said hand-held unit is making a call and when it is receiving a call, said hand-held unit further including a means for monitoring said plurality of channels during said scanning to determine if its hand-held unit ID code is transmitted on any one of said channels when said hand-held unit is receiving a call, and for determining if a base unit is transmitting a channel clear signal when said hand-held unit is making a call;
said network further comprising a plurality of base units each including a means for transmitting a channel clear signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A cordless telephone network including a hand-held unit having a memorized distinctive ID code and including a cordless telephone transmitter/receiver means for cordlessly communicating two-way calls between said hand-held unit and a base unit, said base unit and said hand-held unit communicating with one another using cordless waves having a power range of only around 1000 feet or less on only cordless telephone channels, said hand-held unit inducing a means for scanning a plurality of cordless telephone channels when said hand-held unit is receiving a call and when it is making a call, said hand-held unit further including a means for monitoring said plurality of channels during said scanning to determine if a base unit is transmitting a channel clear signal when said hand-held unit is making a call and to determine if tis hand-held unit ID code is transmitted on any one of said channels when said hand-held unit is receiving a call;
- said network further comprising a base unit including a means for transmitting a channel clear signal.
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9. A cordless telephone network including a hand-held unit having a memorized distinctive ID code and including a cordless telephone transmitter/receiver means for cordlessly communicating two-way calls between said hand-held unit and a base unit, said base unit and said hand-held unit communicating with one another using cordless waves having a power range of only around 1000 feet or less on only cordless telephone channels, said hand-held unit including a means for scanning a plurality of cordless telephone channels for monitoring said plurality of channels during said scanning to determine if said base unit is transmitting a channel clear signal;
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said network further comprising a base unit including a means for transmitting a channel clear signal; said hand-held unit including a means for capturing said base unit upon receiving said channel clear signal so that thereafter said base unit only communicates with said hand-held unit by transmitting said hand-held unit'"'"'s distinctive ID code along with commands transmitted between said hand-held unit and said base unit. - View Dependent Claims (10, 11, 12)
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Specification