Apple Inc, a company involved in business activities in technology sector, has been recently granted a patent for invention titled “METHOD AND DIGITAL CONVERTIBLE RADIO FOR OPTIMIZING SINGNAL-TO-NOISE RATIO IN A MULTI-SYSTEM”.
The patent has been issued as granted patent number 306227 filed as application number 2045/DELNP/2006 having scope (abstract) of invention as:
“A digital convertible radio optimizes signal-to-noise ratios by substantially canceling undesired components of a plurality of input data streams present in sector signals in a cellular network. The sector output power is then scaled to optimize the total power at the sector output ports. The input data streams are cross-correlated with each other and with digital representations of the sector signals to produce a plurality of cross-correlated signals. The plurality of cross-correlated signals is combined to identify the undesired crosscorrelated signals. The portion of the undesired signal measurement representing the correlation between the input signal streams are removed using the input signal cross correlation and system transfer function determination. A weighted vector adjustment module produces a plurality of complex weighted vector values that are mixed with the plurality of input data streams. Each weighted vector value is incrementally and sequentially adjusted based, in part, on measured undesired power levels. The real and imaginary components of the weighted vector value are updated with an incremented or decremented value that produces the lowest measured undesired power level.”
The primary independent claim (claim 1) of this patent states:
“A method in a digitally convertible radio (DCR) for optimizing a signal-to-noise ratio (SNR) in a multi-port system, the method comprising: receiving a plurality of input digital data streams, the digital data of the input data streams having magnitude and phase components wherein the plurality is equal to “N” input digital data streams; creating a corresponding plurality of mixed input data streams from the plurality of input data streams and a plurality of weighted vector values, each of the plurality of mixed input data streams comprising magnitude and phase components of all the plurality of input data streams wherein the corresponding plurality is equal to “N”; converting the plurality of mixed input data streams to a plurality of analog mixed signals; amplifying the plurality of analog mixed signals; producing, in an analog hybrid matrix, a plurality of sector signals from the plurality of amplified analog mixed signals, respectively, wherein: the first sector signal comprises a maximum first sector signal, a minimal second sector signal component, and a minimal third sector signal component; the second sector signal comprises a maximum second sector signal, a minimal first sector signal component, and a minimal third sector signal component; and the third sector signal comprises a maximum third sector signal, a minimal first sector signal component, a minimal second sector signal component; transmitting the first, second, and third sector signals from antennas coupled to a first output port, a second output port, and a third output port, respectively; and characterized by: correlating digital domain representations of the first, second, and third sector signals with the plurality of input data streams to produce a plurality of sector cross-correlated signals; correlating the plurality of input data streams with each other to produce a plurality of input cross-correlated signals; substantially canceling the cross-correlation between input data streams present in the plurality of sector cross-correlated signals to produce a plurality of corrected sector cross-correlated signals, wherein: the step of substantially canceling the cross-correlation substantially removes, from a single sector cross-correlated signal, the correlated components of all other sector cross-correlated signals; producing normalized power feedback signals from the plurality of corrected sector cross-correlated signals; and determining, from the normalized power feedback signals, a plurality of weighted vector values.”
The patent has been granted under International Patent Classification (IPC) H04Q, which covers inventions related to:
“SELECTING (switches, relays, selectors H01H; wireless communication networks H04W)”
This patent can be opposed under post-grant patent opposition within 12 months of the date of grant of this patent.
We provide comprehensive Patent and Trademark legal services via our global network to create valuable patent portfolios and resolve complex patent disputes by providing patent litigation support services.
Our team of advanced patent attorneys assists clients with patent searches, drafting patent applications, and patent (intellectual property) agreements, including licensing and non-disclosure agreements.
Advocate Rahul Dev is a Patent Attorney & International Business Lawyer practicing Technology, Intellectual Property & Corporate Laws. He is reachable at rd (at) patentbusinesslawyer (dot) com & @rdpatentlawyer on Twitter.
Quoted in and contributed to 50+ national & international publications (Bloomberg, FirstPost, SwissInfo, Outlook Money, Yahoo News, Times of India, Economic Times, Business Standard, Quartz, Global Legal Post, International Bar Association, LawAsia, BioSpectrum Asia, Digital News Asia, e27, Leaders Speak, Entrepreneur India, VCCircle, AutoTech).
Regularly invited to speak at international & national platforms (conferences, TV channels, seminars, corporate trainings, government workshops) on technology, patents, business strategy, legal developments, leadership & management.
Working closely with patent attorneys along with international law firms with significant experience with lawyers in Asia Pacific providing services to clients in US and Europe. Flagship services include international patent and trademark filings, patent services in India and global patent consulting services.
Global Blockchain Lawyers (www.GlobalBlockchainLawyers.com) is a digital platform to discuss legal issues, latest technology and legal developments, and applicable laws in the dynamic field of Digital Currency, Blockchain, Bitcoin, Cryptocurrency and raising capital through the sale of tokens or coins (ICO or Initial Coin Offerings).
Blockchain ecosystem in India is evolving at a rapid pace and a proactive legal approach is required by blockchain lawyers in India to understand the complex nature of applicable laws and regulations.