Patent application number | Description | Published |
20090110206 | METHOD AND APPARATUS FOR SENSING A SIGNAL ABSENCE OF AUDIO AND AUTOMATICALLY ENTERING LOW POWER MODE - An electronic device having a unique audio sensing method that senses the event of no audio for a predetermined period of time. The sensed information is used by a microprocessor to bring the device into a low-power mode. The same method may be used to bring a device into active mode from a low-power mode. | 04-30-2009 |
20090157803 | Method for capture, aggregation, storage, and transfer of internet content for time-shifted playback on a portable multimedia device - A method for capture, aggregation, storage and transfer of Internet content for time-shifted playback on a portable multimedia device utilizing a content time-shifter system which is programmed and maintained via a web-based maintenance server, and schedules capture of content via on-line schedule listing and media listing services. | 06-18-2009 |
20100159836 | AUTOMATIC PRESENT TUNING USING RDS PROTOCOL - An automatic preset following system for use with portable multimedia playback devices. The system uses RDS protocols including, at a minimum, AF and PI. Apparatus include an RDS enabled FM transmitter for use with a portable multimedia playback device, the transmitter having a user interface with buttons for presetting the transmitter to broadcast a signal at preset PM frequencies, and an RDS enabled FM receiver for automatically tuning to the different preset FM frequencies entered into the RDS enabled FM transmitter. | 06-24-2010 |
20100182507 | METHOD AND APPARATUS FOR USING A COLOR INDICATOR TO DISPLAY FREQUENCY OR CHANNEL SELECTION - A system for matching the currently tuned frequency of a signal transmitting device with that of a signal receiving device, including a transmitter having an illuminated color display which changes colors in relation to the channel or frequency on which the transmitter is currently tuned, and a signal receiving device having an illuminated color display which changes colors in relation to the channel or frequency on which the signal receiving unit is currently tuned. Each device has a channel selector function so that the frequency to which the device is tuned can be changed, thereby changing the color displayed. | 07-22-2010 |
20100315021 | CIRCUIT AND METHOD FOR CONTROLLING RGB LED COLOR BALANCE USING A VARIABLE BOOSTED SUPPLY VOLTAGE - A microprocessor uses one or more output pins to pulse width modulate a charge pump network to achieve a boosted voltage on an output port. The boosted voltage is then used to drive an LED, which may have a higher voltage drop than that of the starting un-boosted voltage. The adjustment of either the frequency or duty cycle of the PWM signal allows for adjustment of the steady state output voltage. This allows for the adjustment of the brightness of the LED by firmware while supplying enough voltage drop required by the LEDs. | 12-16-2010 |
20110279409 | System and Method for Detecting Locations of Touches on a Touch Sensor - A projected capacitive touch sensor system includes a substrate that defines a plurality of non-overlapping areas. Each non-overlapping area includes a plurality of detection electrodes arranged in non-overlapping columns. The columns include a horizontal detection electrode that extends along substantially an entire height of a first column, and at least a second column of at least two vertical detection electrodes that are electrically isolated from one another. The system further includes a measuring circuit configured to measure a mutual capacitance between the horizontal detection electrode and each of the at least two vertical detection electrodes in a given area. A processing logic circuit of the system is configured to determine horizontal detection electrode and vertical detection electrode combinations that have a changed mutual capacitance. The processing logic is also configured to determine the touch location based on a location of the determined horizontal detection electrode and vertical electrode combinations. | 11-17-2011 |
20130147767 | Dispersion-Based Acoustic Touch Signal Detection and Reflector-Based Dispersion Mitigation - A method of detecting a touch event includes transmitting acoustic signals across a substrate, and receiving the acoustic signals. The received acoustic signals have a waveform profile with a dip indicative of a touch on the substrate. The method further includes determining a dispersion level of the dip from the waveform profile, and determining a location coordinate of the touch on the substrate based on the dispersion level. | 06-13-2013 |
20130147768 | Acoustic Touch Signal Dispersion Mitigation - A touch input system includes a substrate configured to support propagation of acoustic signals, a transducer in communication with the substrate and configured to transmit or receive the acoustic signals before or after the propagation, and an array of reflectors disposed on the substrate. Each reflector is oriented on an angle to redirect the acoustic signals along a path toward or away from the transducer. The transducer includes a stepped interface for the redirected acoustic signals. The stepped interface includes a set of interface elements distributed across a width of the acoustic signals and offset from one another along the path to compensate for the angle of the reflectors. | 06-13-2013 |