Abstract: A method for training a trainable RF transmitter to transmit variable code signals used to actuate a remote device having a receiver where the transmitter includes a memory that has stored variable code characteristics for a plurality of different remote devices includes initiating a training sequence and generating at least one RF carrier signal having the variable code characteristics associated with one remote device of the plurality of different remote devices. The method further includes transmitting the at least one RF carrier signal to the receiver of the remote device and repeating the generating and transmitting steps for the variable code characteristics of each remote device in the plurality of different remote device until feedback is received from a user that the remote device is activated. Upon receiving an indication that the remote device is activated, the transmitter stores an identifier of the variable code characteristics that activated the remote device.

Abstract: A wireless control system is configured to be trainable to control any number of remotely controlled devices. The system can be configured to gather and learn information relating to a signal transmitted by the original transmitter in a manner that is blind to a user of the system. The system can be designed to learn signals automatically such that fewer steps are necessary for a user to train the system to control a particular remotely controlled device. The system can train to remotely controlled devices in this manner with little or no user action required.

Abstract: A method for training a trainable RF transmitter to transmit variable code signals used to actuate a remote device having a receiver where the transmitter includes a memory that has stored variable code characteristics for a plurality of different remote devices includes initiating a training sequence and generating at least one RF carrier signal having the variable code characteristics associated with one remote device of the plurality of different remote devices. The method further includes transmitting the at least one RF carrier signal to the receiver of the remote device and repeating the generating and transmitting steps for the variable code characteristics of each remote device in the plurality of different remote device until feedback is received from a user that the remote device is activated. Upon receiving an indication that the remote device is activated, the transmitter stores an identifier of the variable code characteristics that activated the remote device.

Abstract: A rearview assembly for a vehicle including a mounting structure for mounting to a vehicle, a rearward viewing device, and housing with a position sensor, is provided. The position sensor includes first and second radiation emitters, a radiation reception element, and sensor processing circuitry coupled to one of the position sensors and the radiation reception element. The position sensor determines the position of an object in the vicinity of the rearward viewing device.

Abstract: A multi-display vehicular rearview mirror system (2600) and method includes an electrochromic (EC) glass element (2603) and a plurality of liquid crystal displays (LCDs) (2605a, 2605b, 2605c) positioned behind EC element (2603). A plurality of light emitting diodes (LEDs) (2610a, 2610b, 2610c) are used for providing backlighting for each respective LCD of the plurality of LCDs such that the LCDs utilize a plurality of imaging devices (2717, 2719, 2721) for forming substantially a single image across the plurality of LCDs (2605a, 2605b, 2605c).

Abstract: A system for searching stored audio data is described. The system includes a memory configured to store audio data received from a radio receiver and a processing circuit. The processing circuit is configured to receive a search pattern, search the stored audio data for the search pattern, and provide audio data based on the search.

Abstract: A wireless control system is configured to be trainable to control any number of remotely controlled devices. The system can be configured to gather and learn information relating to a signal transmitted by the original transmitter in a manner that is blind to a user of the system. The system can be designed to learn signals automatically such that fewer steps are necessary for a user to train the system to control a particular remotely controlled device. The system can train to remotely controlled devices in this manner with little or no user action required.

Abstract: A trainable transceiver for learning and transmitting an activation signal that includes an RF carrier frequency modulated with a code for remotely actuating a device, such as a garage door opener. The trainable transceiver preferably includes a controller, a signal generator, and a dynamically tunable antenna having a variable impedance that may be selectively controlled in accordance with a detector circuit signal. The detector circuit provides a measurement of the transmission power and is also used to vary the applied transmission power of the transceiver in response to operating and environmental parameters.

Abstract: A rearview assembly for a vehicle including a mounting structure for mounting to a vehicle, a rearward viewing device, and housing with a position sensor, is provided. The position sensor includes first and second radiation emitters, a radiation reception element, and sensor processing circuitry coupled to one of the position sensors and the radiation reception element. The position sensor determines the position of an object in the vicinity of the rearward viewing device.

Abstract: An inventive rearview assembly for a vehicle may comprise a mirror element and a display including a light management subassembly. The subassembly may comprise an LCD placed behind a transflective layer of the mirror element. Despite a low transmittance through the transflective layer, the inventive display is capable of generating a viewable display image having an intensity of at least 250 cd/m2 and up to 3500 cd/m2. The display includes a novel backlighting subassembly and novel optical components including a magnifying system, a depolarizer, a reflector, and a reflective polarizer. The display may be configured to display an image having edges contoured to correspond to the edges of the mirror element.

Abstract: A digital pulsed phase locked loop (DPPLL) provides exact measurements of echo phase, time, and/or position delay as well as echo amplitude. These exact measurements provide better and more reliable results that directly benefit the many real world applications for the DPPLL. The DPPLL permits simultaneous tracking of multiple echo pulses and considerably improved echo selection and sampling.

Abstract: According to one embodiment of the present invention, a power supply circuit is provided for selectively supplying power to a vehicle accessory. The power supply circuit may be comprised of a switch coupled to a power line from the vehicle battery and to a power input of the accessory, and a control circuit coupled to the switch. The control circuit may monitor the battery voltage and selectively supply power from the battery to the accessory in response to the battery voltage. The control circuit may supply power from the battery to the accessory when the battery voltage changes at least a predetermined amount over a time period. The control circuit may comprise a microprocessor that adaptively learns signatures in the battery voltage occurring when the engine is running in order to provide power from the battery to the accessory as if the power were supplied from the ignition.

Abstract: A system for receiving data for training a trainable transmitter used to subsequently transmit a modulated RF signal having the received data includes an antenna, a capacitive detection circuit and a control circuit. The capacitive detection circuit is coupled to the antenna and configured to detect data provided in a control signal of a remote control transmitter used to remotely actuate a device. The control circuit is coupled to the capacitive detection circuit and is configured to store the received data and to generate the RF signal having the received data to be transmitted by the trainable transmitter to actuate the device.

Abstract: An in-vehicle transmitter for wirelessly controlling a plurality of remote electronic systems is described. The transmitter includes a memory configured to store a plurality of wireless control code for the plurality of remote electronic systems. The plurality of wireless control code includes a first code to control the operation of a first remote electronic system and a second code different than the first code to control the operation of a second remote electronic system. The transmitter further includes a control circuit mounted to a vehicle interior element configured, in response to operator actuation of one switch, so that the transmitter provides a first wireless control signal having the first code and a second wireless control signal having the second code.

Abstract: A wireless control system is configured to be trainable to control any number of remotely controlled devices. The system can be configured to gather and learn information relating to a signal transmitted by the original transmitter in a manner that is blind to a user of the system. The system can be designed to learn signals automatically such that fewer steps are necessary for a user to train the system to control a particular remotely controlled device. The system can train to remotely controlled devices in this manner with little or no user action required.

Abstract: Parallel generation of random values of a stream cipher utilizing a common S-box is provided. The generation of the values includes determining if a collision exists between accesses of the common S-box. The determination of the two sequential random values is then modified based on whether a collision exists between accesses of the common S-box. The stream cipher may be the ARC-4 cipher.

Abstract: A trainable transceiver system includes a trainable transceiver fixedly coupled to a vehicle interior element. The trainable transceiver is configured to receive a characteristic of an activation signal, store the characteristic of the activation signal in memory and to retransmit the characteristic of the activation signal. The trainable transceiver system also includes a portable transmitter that is configured to receive the characteristic of the activation signal from the trainable transceiver, to store the activation signal characteristic and to retransmit the stored activation signal characteristic. The characteristic of the activation signal may be transmitted from the trainable transceiver to the portable transmitter by, for example, an optical transmission or an RF transmission.

Abstract: A trainable transceiver for learning and transmitting an activation signal that includes an RF carrier frequency modulated with a code for remotely actuating a device, such as a garage door opener. The trainable transceiver preferably includes a controller, a signal generator, and a dynamically tunable antenna having a variable impedance that may be selectively controlled in accordance with a detector circuit signal. The detector circuit provides a measurement of the transmission power and is also used to vary the applied transmission power of the transceiver in response to operating and environmental parameters.

Abstract: A method for training a trainable RF transmitter to transmit variable code signals used to actuate a remote device having a receiver where the transmitter includes a memory that has stored variable code characteristics for a plurality of different remote devices includes initiating a training sequence and generating at least one RF carrier signal having the variable code characteristics associated with one remote device of the plurality of different remote devices. The method further includes transmitting the at least one RF carrier signal to the receiver of the remote device and repeating the generating and transmitting steps for the variable code characteristics of each remote device in the plurality of different remote device until feedback is received from a user that the remote device is activated. Upon receiving an indication that the remote device is activated, the transmitter stores an identifier of the variable code characteristics that activated the remote device.

Abstract: A trainable transceiver for learning signal characteristics of an RF control signal received from a remote control transmitter used to remotely actuate a device and for subsequently transmitting a modulated RF signal having the learned signal characteristics includes an antenna, a wideband receiver and a control unit. The wideband receiver is coupled to the antenna and is configured to receive an RF control signal from the remote control transmitter. The RF control signal includes a control code, a set of data characteristics and an RF carrier frequency. The control circuit is coupled to the wideband receiver and has a training mode in which the control circuit is configured to identify and store the control code of the RF control signal, to identify at least one data characteristic from the set of data characteristics and to identify at least one RF frequency associated with the RF control signal based on the at least one data characteristic.