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Sony : Researchers Submit Patent Application, "Communications Device and Method for Transmitting at Least Two Parallel Transmit Signals", for Approval...

09/02/2015 | 05:17pm US/Eastern

Researchers Submit Patent Application, "Communications Device and Method for Transmitting at Least Two Parallel Transmit Signals", for Approval (USPTO 20150236761)

By a News Reporter-Staff News Editor at Electronics Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors Schwager, Andreas (Waiblingen, DE); Schneider, Daniel (Stuttgart, DE), filed on October 1, 2013, was made available online on August 27, 2015.

The patent's assignee is Sony Corporation.

News editors obtained the following quote from the background information supplied by the inventors: "The present disclosure relates to a communications device and a method for transmitting at least two parallel transmit signals via a transmission channel.

"The 'background' description provided herein is for the purpose of generally presenting the context of the disclosure. Work of the presently named inventors, to the extent it is described in this background section, as well as aspects of the description which may not otherwise qualify as prior art at the time of filing, are neither expressly or impliedly admitted as prior art against the present disclosure.

"Multiple-input multiple-output (MIMO) and multiple-input single-output communications systems (MISO) use beamforming for increasing bandwidth and to enhance the signal-to-noise ratio at a receiving device. There is a need to optimize data throughput in MIMO and MISO communications systems while fulfilling regulatory limits for electromagnetic interference (EMI)."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "A communications device is provided including a transmitter unit configured to transmit at least two transmit signals via a transmission channel; a precoder unit configured to beamform the transmit signals based on a precode matrix that is adapted to reduce a signal level at at least one location in an area of the transmission channel; and an amplifier adapted to amplify at least one of the transmit signals to a value that results in a signal level at the at least one location that is below a predetermined signal level.

"Further, a method for transmitting at least two transmit signals via a transmission channel is provided, including beamforming the at least two transmit signals based on a precode matrix that reduces a signal level at at least one location in an area of transmission channel; and amplifying at least one of the transmit signals to a value that results in a signal level at the at least one location that is below a predetermined signal level.

"The foregoing paragraphs have been provided by way of general introduction, and are not intended to limit the scope of the following claims. The described embodiments, together with further advantages, will be best understood by reference to the following detailed description taken in conjunction with the accompanying drawings. The elements of the drawings are not necessarily to scale relative to each other.

BRIEF DESCRIPTION OF THE DRAWINGS

"A more complete appreciation of the disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein:

"FIG. 1A is a schematic block diagram illustrating a wired MIMO communications system with a receiver unit integrated in a first communications device and a transmitter unit integrated in a second communications device in accordance with an embodiment of the disclosure.

"FIG. 1B is a schematic block diagram illustrating the transmitter unit of FIG. 1A according to an embodiment.

"FIG. 1C is a schematic block diagram illustrating the transmitter unit of FIG. 1A according to a further embodiment.

"FIG. 1D is a schematic block diagram illustrating details of a transmitter unit in accordance with another embodiment referring to beamforming in the frequency domain.

"FIG. 1E is a scheniatic block diagram illustrating details of a LI ansrnitter unit in accordance with a further embodiment referring to beamforming in the time domain.

"FIG. 2A is a schematic block diagram illustrating a MIMO communications system using an in-house electric power wiring according to another embodiment in a first state in which a temporarily connected communications device is connected to an outlet of the in-house wiring.

"FIG. 2B is a schematic block diagram illustrating the MIMO communications system of FIG. 2A in a second state in which the temporarily connected communications device is replaced with a consumer application device.

"FIG. 3 illustrates the electromagnetic interference (EMI) and the signal-to-noise ratio (SNR) depending on different precoding procedures in an indoor environment.

"FIG. 4 illustrates the electromagnetic interference (EMI) and the signal-to-noise ratio (SNR) depending on different precoding matrices measured at a first outdoor antenna location.

"FIG. 5 illustrates the electromagnetic interference (EMI) and the signal-to-noise ratio (SNR) depending on different precoding matrices measured at a second outdoor antenna location.

"FIG. 6 is a schematic flow diagram of a method according to an embodiment of the disclosure."

For additional information on this patent application, see: Schwager, Andreas; Schneider, Daniel. Communications Device and Method for Transmitting at Least Two Parallel Transmit Signals. Filed October 1, 2013 and posted August 27, 2015. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=1028&p=21&f=G&l=50&d=PG01&S1=20150820.PD.&OS=PD/20150820&RS=PD/20150820

Keywords for this news article include: Sony Corporation, Communications Systems, Electronic Equipment Companies.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2015, NewsRx LLC

(c) 2015 NewsRx LLC, source Technology Newsletters

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