Apple Inc.

Leapfrog Enterprises, Inc.

Palm, Incorporated

David F Wilson

Eric C Anderson

William Vincent Oxford

Mark B Flowers

Lawrence F Heyl

Peter Milford

John Caldwell

Ronald Horowitz

Rich Freeman

Robert Mitchell

An electronic device comprises an earpiece speaker, a loudspeaker, and a processing circuit. The processing circuit is configured to receive a wireless telephony audio signal, to separate the audio signal into a first portion and a second portion, the first portion having higher frequency components than the second portion, wherein the processing circuit is configured to provide the first portion of the audio signal to the earpiece speaker and the second portion of the audio signal to the loudspeaker.

Audio output using multiple speakers

A device for coupling to other devices and unique identification thereof may include a body and a coupler. The coupler may be disposed on the body and may be operable to couple to a coupler of another device. The device may include a test circuit and a processor for recognizing other devices. The processor may be operable to determine the presence of a particular device within a chain of devices by controlling the inputs of the test circuit and monitoring the outputs of the test circuit. The device may include a circuit element for uniquely identifying the device when the device is coupled to one or more of the other devices.

Device for coupling to other devices and unique identification thereof

Detecting information relating to a medium in an interactive media device. The device includes a surface able to receive the medium and a sensor network embedded within the surface. The sensor network includes a configuration able to detect medium information. The device has a processor able to issue signals to the sensor network and to receive signals indicating capacitance change caused by proximity of a region of the medium to the sensor network. Thus, the processor is able to detect medium information based on the capacitance change.

Capacitive sensing of media information in an interactive media device

The audio system having a master clock, a serial port clocked according to a serial clock from the audio system, a programmable audio functional circuitry programmable and operable at a plurality of sample rates, and a rate selection control logic which sense a ratio between the serial clock and the master clock. The serial clock is derived from the master clock. The rate selection control logic reprograms the audio functional circuitry based on the ratio, to operate at one of the plurality of sample rates in response to a change in the clock rate of the serial clock, such that the audio functional circuitry operates at another of the plurality of sample rates.

Audio functional unit and system and method for configuring the same

A protocol for transferring audio data and control/status data between audio functional units. The protocol involves multiplexing the audio data and control/status data. The multiplexed data is then transferred between a first audio unit and a second audio unit on two wires, each corresponding to the direction of data flow, and according to a clock rate and a synchronization pattern on third and fourth wires respectively.

Multiplexed digital audio and control/status serial protocol

A circuit and method for mixing signals from audio sources provide noise reduction by employing a noise gate to selectively attenuate one of the source signals. The noise gate has a low gain state and a unity gain state. The noise gate switches to its unity gain state when a control signal reaches a predefined threshold voltage. The control signal is generated by rectifying and integrating the noisy source audio signal, so that the noise gate enters the unity gain state only when a useful sound occurs. Thus, the noise in the combined audio signal is reduced, without attenuating useful components of the source signals.

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Los Altos, CA, United States of America

David F Wilson