System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS)
First Claim
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1. A cellular telephone accessory system for simultaneously incorporating data and voice within a single voice channel of a portable cellular telephone having an accessible phone bus, comprising:
- 1) cradle means for receiving said portable cellular telephone and having a microphone interface and speaker interfaces, 2) a core unit having a data-in-voice modem for receiving and transmitting voice and data signals simultaneously in said single voice channel when said cellular telephone is in said cradle, a micro controller, switch means controlled by said micro controller for controlling data and voice signals to and from said modem on said single voice channel, and a hands-free controller circuit for sensing presence of said portable cellular telephone in said cradle, 3) connector means for;
1) a supplemental antenna and means of coupling RF signals from said portable cellular telephone to said supplemental antenna, 2) coupling audio lines of said telephone bus to said data-in-voice modem in said core unit, and 4) a voice line controlled by said hands-free circuit for connecting said microphone and speaker to said core unit.
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Abstract
An accessory device for portable telephones which provides simultaneous functionality of a hands-free accessory device and a data-in-voice modem enabling a portable telephone to be used in a vehicle such that the driver can be engaged in a hands-free conversation at the same time as data (such as GPS position information) is being sent over the same cellular voice channel.
379 Citations
10 Claims
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1. A cellular telephone accessory system for simultaneously incorporating data and voice within a single voice channel of a portable cellular telephone having an accessible phone bus, comprising:
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1) cradle means for receiving said portable cellular telephone and having a microphone interface and speaker interfaces, 2) a core unit having a data-in-voice modem for receiving and transmitting voice and data signals simultaneously in said single voice channel when said cellular telephone is in said cradle, a micro controller, switch means controlled by said micro controller for controlling data and voice signals to and from said modem on said single voice channel, and a hands-free controller circuit for sensing presence of said portable cellular telephone in said cradle, 3) connector means for;
1) a supplemental antenna and means of coupling RF signals from said portable cellular telephone to said supplemental antenna, 2) coupling audio lines of said telephone bus to said data-in-voice modem in said core unit, and 4) a voice line controlled by said hands-free circuit for connecting said microphone and speaker to said core unit. - View Dependent Claims (2, 3, 4, 5, 6, 8, 10)
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7. An accessory device for portable telephones, comprising:
a cradle for receiving the portable telephone and hands-free microphone and speaker, means for enabling hands-free conversations by the user over a cellular voice channel, and a data-in-voice modem, a micro controller, switch means controlled by said micro controller for embedding data in said voice channel simultaneously with a user conversation.
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9. In a cellular telephone unit having a voice channel carried in a vehicle, said vehicle having a plurality of vehicle condition sensors and a vehicle data bus for coupling signals from said sensors to a vehicle on-board computer, a data-in-voice modem connected to said cellular telephone unit, micro controller means, switch means controlled by said micro controller for coupling signals from said vehicle condition sensors to said data in voice modem for transmitting on said voice channel to a central station.
Specification