Abstract: A mobile telecommunications apparatus includes a portable media device adapted to receive electronic data through a network, the portable media device comprising a first antenna adapted to receive electromagnetic signals of a particular frequency, the frequency is at least one of a radio frequency and a television (TV) frequency, and a headset in electrical communication with the portable media device and adapted to receive the electronic data through the network, the headset includes a switch coupled to the first antenna, a second antenna coupled to the switch, and a headset speaker comprising at least one of a mono headset speaker and a stereo headset speaker, the switch is adapted to combine operation of the first antenna and the second antenna into a dual operation diversity receiver. The network may comprise a Digital Video Broadcasting over Handheld (DVB-H) network.

Abstract: A mobile telecommunications apparatus includes a portable media device adapted to receive electronic data through a network, the portable media device comprising a first antenna adapted to receive electromagnetic signals of a particular frequency, the frequency is at least one of a radio frequency and a television (TV) frequency, and a headset in electrical communication with the portable media device and adapted to receive the electronic data through the network, the headset includes a switch coupled to the first antenna, a second antenna coupled to the switch, and a headset speaker comprising at least one of a mono headset speaker and a stereo headset speaker, the switch is adapted to combine operation of the first antenna and the second antenna into a dual operation diversity receiver. The network may comprise a Digital Video Broadcasting over Handheld (DVB-H) network.

Abstract: A wireless communications device uses an amplifier module to transmit signals. The amplifier module is configured to amplify a signal. The amplifier module includes an amplifier circuit and a control module. The control module is configured to vary the operating parameters of the amplifier circuit based on a desired output power level. The control module relies on stored data values to dynamically vary the operating parameters of the amplifier circuit so as to increase the efficiency of the amplifier circuit.

Abstract: A communications device includes an amplifier module configured to amplify a signal. The amplifier module includes a parallel arrangement of amplifiers each designed to operate with increased efficiency for different power level ranges. A controllable switch selectively interconnects the power amplifiers. A controller in communication with the controllable switch selectively interconnects the power amplifiers to increase the efficiency of the amplifier module.

Abstract: A wireless communications device uses an amplifier module to transmit signals. The amplifier module is configured to amplify a signal. The amplifier module includes an amplifier circuit and a control module. The control module is configured to vary the operating parameters of the amplifier circuit based on a desired output power level. The control module relies on stored data values to dynamically vary the operating parameters of the amplifier circuit so as to increase the efficiency of the amplifier circuit.

Abstract: A wireless communications device uses an amplifier module to transmit signals. The amplifier module is configured to amplify a signal. The amplifier module includes an amplifier circuit and a control module. The control module is configured to vary the operating parameters of the amplifier circuit based on a desired output power level. The control module relies on stored data values to dynamically vary the operating parameters of the amplifier circuit so as to increase the efficiency of the amplifier circuit.

Abstract: A wireless communications device includes an amplifier module configured to amplify a signal. The amplifier module includes a serial arrangement of amplifiers. Each of the amplifiers are designed to operate with increased efficiency for different power level ranges. The amplifiers are connectable via controllable switches. A controller, in communication with the controllable switches, selectively connects the amplifiers to increase the efficiency of the amplifier module.

Abstract: A device (111) for simulating a high battery temperature used in charging a rechargeable cell (101). The device takes advantage of a control signal generated by a voltage control circuit (103) used to disconnect a rechargeable cell (101) from a charging system (105) when a predetermined voltage is reached. The device (111) is generally used with cells having a lithium based chemistry and requiring a different charging regime then nickel chemistry cells. The device (111) is activated by the control signal from control circuit (103) which detects a predetermined voltage from rechargeable cell (101) enabling thermistor (113) to change its state. This change is detected by the charging system (105) which alters its mode of operation from a rapid charging rate to a slower charging rate. The device is retrofitable to existing rechargeable batteries allowing them to be charged using existing charging systems alien to the rechargeable battery.

Abstract: A battery system (400) for use with portable electronic products which includes protection circuitry for allowing the battery system to be safely recharged in a recharging system. The battery system (400) includes cells (401) and a plurality of controls including and overcharge protection circuit (433) for limiting the amount of current to the cells (401) by a charging network and a thermistor (415) and thermistor control (417) for controlling the state of the thermistor (415) to simulate a high temperature condition allowing the charging network to switch modes and accommodate battery system (400) which does not following the charging regimen provided by charging system.