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Texas Instruments : Patent Issued for Power Control for Multichannel Signal Processing Circuit (USPTO 9774949)

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10/05/2017 | 07:12pm CEST

By a News Reporter-Staff News Editor at Electronics Newsweekly -- TEXAS INSTRUMENTS INCORPORATED (Dallas, TX) has been issued patent number 9774949, according to news reporting originating out of Alexandria, Virginia, by VerticalNews editors.

The patent's inventors are Ruan, Jin (Shanghai, CN); Qian, Shun (Shanghai, CN); Liu, Shizhou (Shanghai, CN); Roche, Dafydd H. (Dallas, TX).

This patent was filed on February 28, 2014 and was published online on September 26, 2017.

From the background information supplied by the inventors, news correspondents obtained the following quote: "Various media applications have become commonplace in both commercial and home settings. Such applications where large amounts of both analog and digital data are processed include home theater devices, audio/video receivers, and portable media players for example. To support these and other applications, high speed and real time processing is required to deliver the quality that users have become accustomed to. In many cases, digital signal processors are often employed to provide the underlying processing capability. The first step is usually to convert the signal from an analog to a digital form, by sampling and then digitizing it using an analog-to-digital converter (ADC). The application of computational power to digital signal processing allows for many advantages over analog processing in many applications, such as error detection and correction in transmission as well as data compression. As digital signal processors have become more complex to serve an ever increasing application requirement, processor power consumption has also increased to meet the increased processing demand."

Supplementing the background information on this patent, VerticalNews reporters also obtained the inventors' summary information for this patent: "This disclosure relates to power control for a multichannel signal processing circuit.

"In one example, a circuit includes an input channel array that includes a plurality of channels to receive a plurality of input signals and generate a plurality of channel output signals. A processor processes the plurality of channel output signals from the input channel array. The processor and the input channel array are configured to operate in a sleep mode when all of the analog input signals are inactive or an active mode when at least one of the analog input signals is active. A secondary channel samples the plurality of input signals and generates a secondary output signal indicative of activity for at least one of the plurality of input signals. A secondary channel detector determines a level of signal activity for any of the input signals during the sleep mode based on the secondary output signal. The secondary channel detector enables the processor and the input channel array to enter the active mode in response to the determined level of signal activity.

"In another example, a circuit includes an input channel array having a plurality of channels to receive a plurality of input signals and to generate a plurality of channel output signals. A processor processes the plurality of channel output signals from the input channel array. A controller commands the processor and the input channel array into a sleep mode when all the input signals are inactive or an active mode when at least one of the input signals is active. A secondary channel samples the plurality of input signals for the plurality of channels and generates a secondary output signal indicative of activity for at least one of the plurality of input signals. A secondary channel detector determines a level of signal activity for any of the input signals during the sleep mode based on the secondary output signal. The secondary channel detector generates a wake event to the controller to command the processor and the input channel array to enter the active mode in response to the determined level of signal activity.

"In yet another example, a circuit includes an input channel array having a plurality of channels to receive a plurality of input signals and to generate a plurality of channel output signals. A first processor core filters the plurality of channel output signals from the input channel array and provides a filtered output signal. A second processor core monitors the filtered output signal from the first processor core with respect to a predetermined threshold to determine when the plurality of input signals are inactive. A controller commands the first processor core, the second processor core, and the input channel array into a sleep mode when all the input signals are inactive or an active mode when at least one of the input signals is active. A secondary channel samples the plurality of input signals for the plurality of channels and generates a secondary output signal indicative of activity for at least one of the plurality of input signals. A secondary channel detector determines a level of signal activity for any of the input signals during the sleep mode based on the secondary output signal. The secondary channel detector generates a wake event to the controller to command the first processor core, the second processor core, and the input channel array to enter the active mode in response to the determined level of signal activity."

For the URL and additional information on this patent, see: Ruan, Jin; Qian, Shun; Liu, Shizhou; Roche, Dafydd H.. Power Control for Multichannel Signal Processing Circuit. U.S. Patent Number 9774949, filed February 28, 2014, and published online on September 26, 2017. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9774949.PN.&OS=PN/9774949RS=PN/9774949

Keywords for this news article include: Electronics, Signal Processing, TEXAS INSTRUMENTS INCORPORATED.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2017, NewsRx LLC

(c) 2017 NewsRx LLC, source Technology Newsletters

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