SYSTEM FOR TUNING AN FM TRANSMITTER USING THE DIALING PAD OF A CELLULAR TELEPHONE
First Claim
Patent Images
1. An apparatus to enable the transmission of audio signals to a radio receiver for audible playback, the apparatus comprising:
- a radio frequency transmitter that is tunable over a range of frequencies;
an audio signal interface that receives audio signals and delivers the audio signals to the radio frequency transmitter;
a frequency selection interface that receives signals identifying one of a plurality of frequencies at which to tune the radio frequency transmitter; and
a controller operable to tune the radio frequency transmitter based on the signals received on the frequency selection interface and to enable the radio frequency transmitter to transmit the received audio signals at the tuned radio frequency.
1 Assignment
0 Petitions
Accused Products
Abstract
Audio signals generated by one device, such as a cellular telephone, an MP-3 device, a CD player or the like are transmitted to an RF receiver to be amplified and presented audibly. An RF transmitter is coupled to the device to receive the audio signals and also to a frequency selection interface. The frequency selection interface may be a menu driven interface, a keypad, hardware equipment for automatically selecting a frequency, or the like. The selected frequency is used to tune the RF transmitter and a user is informed as to what frequency the audio signals are available for listening.
7 Citations
20 Claims
-
1. An apparatus to enable the transmission of audio signals to a radio receiver for audible playback, the apparatus comprising:
-
a radio frequency transmitter that is tunable over a range of frequencies;
an audio signal interface that receives audio signals and delivers the audio signals to the radio frequency transmitter;
a frequency selection interface that receives signals identifying one of a plurality of frequencies at which to tune the radio frequency transmitter; and
a controller operable to tune the radio frequency transmitter based on the signals received on the frequency selection interface and to enable the radio frequency transmitter to transmit the received audio signals at the tuned radio frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method for providing audio signals from a cellular telephone to an RF receiver for the audio playback of audio content, the method comprising the steps of:
-
detecting a dialing sequence on the keypad of the cellular telephone;
parsing the dialed sequence to identify a special sequence indicating the input of a frequency selection;
extracting a frequency code from the dialed sequence;
tuning an RF transmitter based on the extracted frequency code; and
transmitting the audio signals from the RF transmitter at the tuned frequency. - View Dependent Claims (15, 16, 17, 18, 19)
-
-
20. An apparatus to enable the transmission of audio signals to a radio receiver for audible playback, the apparatus comprising:
-
a radio frequency transmitter that is tunable over a range of FM frequencies;
a stereo audio signal interface that receives stereo audio signals and delivers the stereo audio signals to the radio frequency transmitter;
a frequency selection interface that receives signals generated by a user selection and identifying one of a plurality of frequencies at which to tune the radio frequency transmitter; and
a controller operable to tune the radio frequency transmitter based on the signals received on the frequency selection interface and to enable the radio frequency transmitter to transmit the received audio signals at the tuned radio frequency.
-
Specification