| Patent application number | Description | Published |
|---|
| 20090143035 | Method for automatic frequency range and step selection using region signature for a digital AM/FM tuner - A method of configuring a tuner includes scanning at least one range of radio frequencies, measuring a signal quality metric for each of a plurality of the frequencies, and selecting a set of operational frequencies for the tuner. The selecting step is dependent upon the measuring step. | 06-04-2009 |
| 20100151809 | Method and apparatus for co-channel interference detection in a radio - A method of configuring a tuner includes sampling a radio frequency and measuring at least one signal quality metric for the sampled frequency. It is determined whether there is co-channel interference on the sampled frequency based on the measurement of the at least one signal quality metric. The sampled frequency is selected as an operational frequency for the tuner if it was determined in the determining step that there is an absence of co-channel interference on the sampled frequency. | 06-17-2010 |
| 20100194552 | Method for driver personalization based on tunnel detection for a single-tuner system - A method of operating a vehicle includes receiving a radio frequency signal and determining that the radio frequency signal has at least one characteristic indicative of the vehicle entering a tunnel. A setting of a vehicle system is automatically modified in response to the determining step. | 08-05-2010 |
| 20100195852 | Menu navigation method for user of audio headphones - A method of operating an audio system having first and second sources includes outputting a first audio signal from the first source on first and second speakers. In response to a listener input, the first audio signal and a second audio signal from the second source are output simultaneously on the first and second speakers. The first signal is output from each of the first and second speakers such that the first signal is perceived by a listener to originate from a first direction toward the listener. The second signal is output from each of the first and second speakers such that the second signal is perceived by the listener to originate from a second direction toward the listener. The second direction is offset at least ninety degrees from the first direction. | 08-05-2010 |
| 20100197255 | Method and apparatus for dynamic station preset configuration in a radio - A method of operating a radio having a plurality of station preset pushbuttons includes assigning to the preset pushbuttons a first group of radio frequencies associated with a first country. A spectrum of radio frequencies is scanned. A signal quality metric is measured for each of the scanned frequencies. A country of origin is determined for each of the scanned frequencies. A country in which the radio is disposed is ascertained dependent upon the measuring step and the determining step. If the country in which the radio is disposed is different from the first country, then either the preset pushbuttons are automatically re-assigned to a second group of radio frequencies associated with the country in which the radio is disposed, or a user is provided with an option to re-assign the preset pushbuttons to the second group of radio frequencies. | 08-05-2010 |
| 20110306313 | METHOD AND APPARATUS FOR UTILIZING MODULATION BASED AUDIO CORRELATION TECHNIQUE FOR MAINTAINING DYNAMIC FM STATION LIST IN SINGLE TUNER VARIANT AND ASSISTING ALTERNATE FREQUENCY SWITCHING METHODOLOGY IN SINGLE TUNER AND DUAL TUNER VARIANTS - A method of operating a single-tuner radio includes tuning into a first frequency. A pause in a first signal associated with the first frequency is detected. Tuning is switched from the first frequency to a second frequency during the pause. Fieldstrength, multipath, adjacent channel energy, frequency offset and FM modulation for the second frequency are measured. Tuning is switched from the second frequency to the first frequency. Tuning is switched from the first frequency to the second frequency dependent upon the measuring step. | 12-15-2011 |
