Abstract:
A keyboard is able to illuminate particular keys and to detect keypresses in an efficient manner. The keys of the array are logically arranged into one or more two-dimensional arrays (e.g., row/column arrays) so that the illumination and keypress detection functions share a common set of electrical signal lines in one dimension of the array. By coupling both the lights and the key actuation switches of each key to a common set of signal lines in one dimension, the number of signal lines used in the keyboard can be reduced.
Abstract:
A remote control is powered by multiple batteries connected in series. The remote control includes a voltage comparison circuit configured to compare a midpoint voltage from a node connecting two of the batteries to a reference voltage. The remote control is able to determine if there is a non-uniform drain rate in the batteries based on the comparison.
Abstract:
A television service provider system includes a first set top box, a second set top box, and a remote control. The remote control transmits an infrared pairing signal which is only received by one of the set top boxes. The receiving set top box pairs itself to the remote control. The non receiving set top box is not paired to the remote control. The remote control then transmits control signals to operate the receiving set top box. The control signals are received by both set top boxes, but are executed only by the set top box that is paired to the remote control.
Abstract:
A method of changing an association of a remote control device from a first electronic device to a second electronic device is presented. In the method, a command for an electronic device is generated and transmitted by the remote control device. At this point, the remote control device is associated with the first electronic device to control the first electronic device, and the remote control device is not associated with the second electronic device. If an acknowledgment of the command is not received, a request to associate the remote control device with another electronic device is transmitted. A reply to the request is then received from the second electronic device. In response to the reply, the remote control device is disassociated from the first electronic device and associated with the second electronic device.
Abstract:
A remote control is powered by multiple batteries connected in series. The remote control includes a voltage comparison circuit configured to compare a midpoint voltage from a node connecting two of the batteries to a reference voltage. The remote control is able to determine if there is a non-uniform drain rate in the batteries based on the comparison.
Abstract:
Various arrangements for determining a voltage of a voltage source using pre-charging are presented. Such arrangements may include a measurement module comprising an analog to digital converter, a driver, and an interface. The interface may be electrically coupled with the analog to digital converter and the driver. The driver may be configured to output current to charge a capacitor. After a first predefined period of time, the driver may stop outputting current to pre-charge the capacitor. After the driver has stopped pre-charging the capacitor and a second predefined period of time has elapsed, the analog to digital converter may be configured to measure a voltage of the capacitor. Such arrangements may include a capacitor, wherein the capacitor is electrically coupled with the interface of the measurement module.
Abstract:
A microcontroller-based electronic device and its operating methods are operable to learn a critical voltage value for a microprocessor control unit residing in the microcontroller-based electronic device. The microprocessor control unit receives power from a battery. An exemplary embodiment detects an operating voltage provided to the microprocessor control unit by a supplemental power reservoir after removal of the battery, stores information corresponding to a value of the operating voltage in a nonvolatile memory, repeats the detecting and the saving information as the operating voltage decays in response to a discharge of the supplemental power reservoir, and determines the actual minimum operating voltage for the microprocessor control unit based on a last one of the stored information corresponding to the value of the operating voltage. A learned critical voltage value is based upon the defined actual minimum operating voltage.
Abstract:
Various arrangements for determining a voltage of a voltage source using pre-charging are presented. Such arrangements may include a measurement module which includes an analog to digital converter, a driver, and an interface. The interface may be electrically coupled with the analog to digital converter and the driver. The driver may be configured to output current to charge a capacitor. After a first predefined period of time, the driver may stop outputting current to pre-charge the capacitor. After the driver has stopped pre-charging the capacitor and a second predefined period of time has elapsed, the analog to digital converter may be configured to measure a voltage of the capacitor. Such arrangements may include a capacitor, wherein the capacitor is electrically coupled with the interface of the measurement module.
Abstract:
A method of informing a user of an identity of an input of a remote control device is presented. In the method, user activation of one of the inputs of the remote control device is detected. An audible signal associated with the activated input is determined. Each of the inputs of the remote control device is associated with a unique one of a plurality of audible signals. The audible signal associated with the activated input is produced to inform the user of the identity of that input.
Abstract:
One embodiment may take the form of a voice control system. The system may include a first apparatus with a processing unit configured to execute a voice recognition module and one or more executable commands, and a receiver coupled to the processing unit and configured to receive a first audio file from a remote control device. The first audio file may include at least one voice command. The first apparatus may further include a communication component coupled to the processing unit and configured to receive programming content, and one or more storage media storing the voice recognition module. The voice recognition module may be configured to convert voice commands into text.