Mosaid Technologies Corporation

Other

Adori Labs, Inc.

Conversant Intellectual Property Management Incorporated

Mosaid Delaware, Inc.

Corning Optical Communications LLC

Foveon, Inc.

Silicon Creations LLC

Andrew J Cole

Daniel L Hillman

Barry Alan Hoberman

John M Callahan

Michael Anthony Zampaglione

William Gordon Walker

Kartik Parija

Viswanathan Iyer

Randy J Caplan

Brian Jeffrey Galloway

Steven P Hardy

Richard Clayton Walker

Joseph Peter John Manca

Richard A Eagleston

In some examples, one or more processors configured by executable instructions may receive an audio signal and data to embed in the audio signal. For example, the data may be received dynamically from one or more data sources. The one or more processors may embed the received data in real time into the audio signal as embedded data based at least in part on controlling a phase angle of a selected frequency component of the audio signal. For instance, the embedded data may include at least one of text, a bar code, a quick response code, an image, a uniform resource locator (URL), or multimedia content. Additionally, the one or more processors may send the audio signal with the embedded data over a network to a plurality of electronic devices that include respective decoders for extracting the embedded data from the audio signal.

Interactive entertainment system

In some examples, an audio signal is received and divided into a plurality of frames. Frequency domain data of the audio signal may be generated for an individual frame of the plurality of frames. For example, the frequency domain data may include a plurality of frequency waveform components. Data may be embedded into a selected frequency waveform component having a lower frequency, selected from the frequency domain data of the individual frames, by controlling a phase value of the frequency waveform component to represent a selected bit of the data. For instance, a first range of the phase value may represent a first type of bit and a second range of the phase value may represent a second type of bit.

In some examples, an audio signal is received and divided into a plurality of frames. Frequency domain data of the audio signal may be generated for an individual frame of the plurality of frames. For example, the frequency domain data may include a plurality of sinusoidal components. Data may be embedded into a selected sinusoidal component selected from the frequency domain data of the individual frame by controlling a phase angle of the selected sinusoidal component to represent a selected bit of the data. For instance, a first range of the phase angle may represent a first type of bit and a second range of the phase angle may represent a second type of bit.

In some examples, an interactive audio system includes a receiver for receiving a broadcasted radio frequency (RF) carrier signal. The system may demodulate a portion of the RF carrier signal to receive a demodulated output signal. For example, the demodulated output signal may include a demodulated audio program having embedded data contained within the demodulated audio signal. The system may extract the embedded data from the demodulated audio program. The system may present information related to the extracted embedded data on a display and/or may send at least a portion of the extracted embedded data to another device.

Disclosed here is an interactive audio system and a method of operating the same. In one embodiment, the interactive audio system comprises a processor and a receiving module for receiving a radio frequency (RF) carrier signal associated with a broadcast station. The audio system further comprises a memory storing computer-executable instructions, where the processing module is configured to access and execute the computer-executable instructions to perform a set of acts. The acts include shifting a frequency associated with the received RF carrier signal to an intermediate frequency (IF). The acts include demodulating the frequency shifted portion of the RF carrier signal associated with the broadcast station, the demodulation resulting in an output signal. The acts further include extracting an embedded data from the demodulated output signal. The acts further include serving the embedded data in conjunction with the demodulated audio signal.

An integrated circuit includes first circuitry and sleep transistor circuitry. The first circuitry receives input signals and processes the input signals. The first circuitry also retains data in a sleep state that has low leakage. The sleep transistor circuitry is coupled to the first circuitry and receives a sleep signal that has a negative voltage. The sleep circuitry reduces power consumption of the first circuitry in the sleep state to have low leakage based on the sleep signal while retaining the data in the first circuitry.

Low leakage and data retention circuitry

Disclosed here is an interactive audio system and a method of operating the same. In one embodiment, the interactive audio system comprises a processor and a receiving module for receiving a radio frequency (RF) carrier signal associated with a broadcast station. The audio system further comprises a memory storing computer-executable instructions, where the processing module is configured to access and execute the computer-executable instructions to perform a set of acts. The acts include shifting a frequency associated with the received RF carrier signal to an intermediate frequency (IF). The acts include demodulating the frequency shifted portion of the RF carrier signal associated with the broadcast station, the demodulation resulting in an output signal. The acts further include extracting an embedded data from the demodulated output signal, where the embedded data can be utilized to interact with a party associated the embedded data. The acts further include serving the embedded data in conjunction with the demodulated audio signal.

Embodiments disclosed herein include receiver optical assemblies (ROAs) having a photo-detector remotely located from a differential transimpedance amplifier (TIA). Related components, circuits, and methods are also disclosed. By providing the photo-detector remotely located from a TIA, additional costs associated with design constraints of providing the photo-detector intimate with a TIA may be avoided, thereby reducing cost of the ROA. In this regard as a non-limiting example, the ROAs according to the embodiments disclosed herein allow shorter haul active optical cable applications for use in consumer applications from a cost standpoint with the added benefits of increased bandwidth and low noise performance of optical fiber. In this regard, the ROAs disclosed herein provide higher input impedance differential TIA circuits and transmission circuits inhibiting or reducing ringing effects and maintain a sufficiently low resistance-capacitance (RC) time constant for differential TIA circuit to allow for higher bandwidth operation of the ROA.

Receiver optical assemblies (ROAs) having photo-detector remotely located from transimpedance amplifier, and related components, circuits, and methods

A method for operating a single slope analog-to-digital converter (ADC) includes providing a ramp generator to provide at least one voltage-ramp segment; applying delta-sigma modulation to the voltage-ramp generator to generate a delta-sigma modulated voltage ramp; operating a digital counter synchronously with the voltage-ramp generator; comparing the delta-sigma modulated voltage-ramp to an input voltage; and latching a count from the digital counter in response to the output of the comparator.

Delta sigma modulator for analog-to-digital converter

A system and method for performing phase-locked loop is disclosed. The system includes phase frequency detector circuitry, charge pump circuitry having first current mirror circuitry and second current mirror circuitry, loop filter circuitry, and voltage controlled oscillator circuitry. The phase frequency detector circuitry generates an up signal and a down signal based on the phase difference of an input signal and a feedback signal. The charge pump circuitry includes the first current mirror circuitry and the second mirror circuitry and generates a charge pump output signal based on the up and down signals. The loop filter circuitry generates a filtered control signal based on the charge pump output signal. The voltage controlled oscillator circuitry generates the feedback signal with a repeating waveform based on the filtered control signal.

Growing community of inventors

Highland Park, TX, United States of America

Andrew J Cole