Circuitry for activating a modem in a cellular telephone
DCFirst Claim
Patent Images
1. A cellular telephone comprising:
- a microphone for converting audio data into analog audio signals;
voice channel circuitry for encoding signals for transmission over a digital voice channel of a communications network;
a modem for converting digital data into analog digital data tones;
a switching circuit that selectively connects the microphone to the voice channel circuitry for converting the analog audio signals into encoded audio signals or selectively connecting the modem to the voice channel circuitry for converting the analog digital data tones into encoded digital data tones;
a button that activates the switching circuit to switch between the modem and the microphone; and
wherein the button and the modem are located on a cell phone battery pack.
8 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A wireless telecommunication device, such as a cell phone, is coupled to a source of digital data which may comprise a GPS receiver. In one embodiment, a GPS receiver and inband signaling modem are integrated into the cell phone battery pack. A pushbutton on the battery pack is actuated by a user to trigger selected events such as formulating location data in the GPS receiver, encoding the location data in the IBS modem and inserting the resulting audio frequency tones into the voice channel of the cell phone for transmission over the voice channel of a digital, wireless telecommunications network.
-
Citations
9 Claims
-
1. A cellular telephone comprising:
-
a microphone for converting audio data into analog audio signals;
voice channel circuitry for encoding signals for transmission over a digital voice channel of a communications network;
a modem for converting digital data into analog digital data tones;
a switching circuit that selectively connects the microphone to the voice channel circuitry for converting the analog audio signals into encoded audio signals or selectively connecting the modem to the voice channel circuitry for converting the analog digital data tones into encoded digital data tones;
a button that activates the switching circuit to switch between the modem and the microphone; and
wherein the button and the modem are located on a cell phone battery pack. - View Dependent Claims (2)
-
-
3. A cellular telephone comprising:
-
a microphone for converting audio data into analog audio signals;
voice channel circuitry for encoding signals for transmission over a digital voice channel of a communications network;
a modem for converting digital data into analog digital data tones;
a switching circuit that selectively connects the microphone to the voice channel circuitry for converting the analog audio signals into encoded audio signals or selectively connecting the modem to the voice channel circuitry for converting the analog digital data tones into encoded digital data tones; and
including a menu selection screen on the cellular telephone that controls the switching circuit.
-
-
4. A method for transmitting data with a cellular telephone, comprising:
-
calling a number with the cellular telephone;
establishing a voice connection with the called number over a voice channel in the cellular telephone;
activating a modem in the cellular telephone to convert digital data into data tones; and
activating a switching circuit in the cellular telephone to connect the modem to the voice channel for transmission of the data tones to the called number;
depressing a button on the cellular telephone that automatically activates both the modem and activates the switching circuit to connect the activated modem to the voice channel; and
locating the button and the modem in a cellular telephone battery pack. - View Dependent Claims (5)
-
-
6. A method for transmitting data with a cellular telephone, comprising:
-
calling a number with the cellular telephone;
establishing a voice connection with the called number over a voice channel in the cellular telephone;
activating a modem in the cellular telephone to convert digital data into data tones;
activating a switching circuit in the cellular telephone to connect the modem to the voice channel for transmission of the data tones to the called number; and
selecting a menu option on the cellular telephone to activate the modem and activate the switching circuit to connect the activated modem to the voice channel.
-
-
7. A mobile communication device comprising:
-
means for converting voice data into voice signals;
means for encoding the voice signals for transmission over a digital audio channel of a communications network;
means for converting digital data into digital data tones;
means for selectively connecting the voice signals to digital audio channel circuitry for converting the voice signals into encoded voice signals for transmission over the digital audio channel or selectively connecting the digital data tones to the digital audio channel circuitry for converting the digital data tones into encoded digital data tones for transmission over the digital audio channel; and
means for activating the connecting means;
wherein the activating means and the means for converting digital data into digital data tones are located in an external device. - View Dependent Claims (8, 9)
-
Specification