Caller identification device and method of operation thereof
First Claim
1. A method of identifying a caller at a device in signal communication with a cellular telephone system, comprising:
- receiving a page at the device from the cellular telephone system, the device having an identification tag;
replying to the page with the location of the device;
receiving a call having at least one of a data signal and a voice signal at the device in response to the reply to the page;
registering a caller identification tag, activating an alert mechanism, and displaying the caller identification tag at the device in response to the received data signal;
denying access to the voice services of a voice channel adapted to contain the voice signal to prevent establishment of a voice call;
receiving at the device a voice channel assignment in response to the reply to the page and before receiving the call;
returning at least one of receiver and a transmitter to the assigned voice channel; and
acknowledging to the cellular telephone system the presence of the device on the voice channel;
wherein a received cellular call is processed at the device for data signal content but not for voice services, thereby enabling identification of the caller absent voice communication with the caller.
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Accused Products
Abstract
A self powered caller identification device (CID) for a cellular telephone system (CTS) includes a receiver, a transmitter and a processor, all of which being adapted to provide access to the content of a data channel and to deny access to the voice services of a voice channel. The receiver is responsive to the data signal in the data channel and the processor is responsive to identify the CID to the CTS. The CID answers a call from the CTS in response to the call being a data signal and fails to answer the call in response to an attempted connection to the voice services of the voice channel. A display at the CID is responsive to the processor to display the content of the data signal thereby identifying the caller to the user of the CID.
465 Citations
7 Claims
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1. A method of identifying a caller at a device in signal communication with a cellular telephone system, comprising:
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receiving a page at the device from the cellular telephone system, the device having an identification tag; replying to the page with the location of the device; receiving a call having at least one of a data signal and a voice signal at the device in response to the reply to the page; registering a caller identification tag, activating an alert mechanism, and displaying the caller identification tag at the device in response to the received data signal; denying access to the voice services of a voice channel adapted to contain the voice signal to prevent establishment of a voice call; receiving at the device a voice channel assignment in response to the reply to the page and before receiving the call; returning at least one of receiver and a transmitter to the assigned voice channel; and acknowledging to the cellular telephone system the presence of the device on the voice channel; wherein a received cellular call is processed at the device for data signal content but not for voice services, thereby enabling identification of the caller absent voice communication with the caller. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification