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Gaddam, NY

Vasanth Gaddam, Tarrytown, NY US

Patent application numberDescriptionPublished
20080279293Coded Orthogonal Frequency Division Multiplexing Method and Apparatus - A method and apparatus for transmitting and receiving data via guard tones are described. The information bits are coded by convolutional encoder (11-13-2008
20080309829FREQUENCY SELECTIVE RADIO SENSOR AND A METHOD THEREOF - An efficient radio sensor and a method thereof. The radio sensor includes a first frequency tracking block (FTB) (12-18-2008
20080310519System, Apparatus, and Method for Single-Carrier Block Transmission with Adaptive Guard Interval - The system, apparatus and method of the present invention provides a single carrier block transmission with guard interval as a means of communications over multi-path channels that enables frequency domain equalization, and therefore, has many of the advantages of OFDM, but does not have some of the drawbacks such as high PAPR and the need for high resolution ADCs. While the use of guard intervals in single carrier communications enables low complexity detection of the signal, it reduces bandwidth efficiency. The present invention improves the bandwidth efficiency by adjusting the length of the guard interval adaptively. Also, by allowing both time-domain and frequency domain equalizations, besides improving bandwidth efficiency, the inventions allows for great flexibility in receiver design.12-18-2008
20100284340METHOD OF PACKET RETRANSMISSION AND RECEPTION AND WIRELESS DEVICE EMPLOYING THE SAME - A first wireless device communicates data to a second wireless device. The first wireless device employs at least one of a first interleaving scheme and a first sub-carrier mapping scheme to produce a first data packet from a first plurality of data bits, and transmits the first data packet to the second wireless device. When the first data packet is not received correctly by the second wireless device, then the first wireless device employs at least one of a second interleaving scheme and a second sub-carrier mapping scheme to create a second data packet from the first plurality of data bits, and transmits the second data packet to the second wireless device.11-11-2010

Vasanth Gaddam, Tarrytonw, NY US

Patent application numberDescriptionPublished
20110170512COGNITIVE RADIO DEVICE AND METHOD FOR DETERMINING CHANNEL OCCUPANCY - A detector module (07-14-2011

Vasanth R. Gaddam, Tarrytown, NY US

Patent application numberDescriptionPublished
20090252202METHOD AND APPARATUS FOR ENHANCED DECODING IN MULTI-BAND ULTRA-WIDEBAND COMMUNICATIONS - A data transmission and reception method includes transmitting a plurality of position data bits and a amplitude bits with each of the pulses. The method also includes decoding the position bits and the amplitude bits. An ultra-wideband (UWB) system is also described.10-08-2009
20090323610BONDING ADJACENT TV BANDS, SUB-CARRIER ALLOCATION, DATA BURST DEFINITION AND SPREAD OFDMA IN A PHYSICAL LAYER FOR 802.22 WRAN COMMUNICATION SYSTEMS - A method and system of calculating debt service capacity of a loan applicant includes capturing, indexing, reclassifying and grouping transaction data and profile data of the loan applicant. Next, capturing a loan structure, risk factors, financial variables and reconciliation rules and finally using the aforementioned and loan applicants' data and cash flow projections to calculate loan applicants' debt service capacity with time value of money calculations.12-31-2009
20100020732PHYSICAL LAYER SUPERFRAME, FRAME, PREAMBLE AND CONTROL HEADER FOR IEEE 802.22 WRAN COMMUNICATION SYSTEMS - The present invention provides a system (01-28-2010
20100067428METHOD AND SYSTEM OF BEACON TRANSMISSION AND RECEPTION - A system includes a first primary wireless system (03-18-2010
20100067629PERFORMANCE IN A TIME-FREQUENCY INTERLEAVED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - In one embodiment, a TFI-OFDM receiver system (03-18-2010
20100311341RADIO SENSOR FOR DETECTING WIRELESS MICROPHONE SIGNALS AND A METHOD THEREOF - Wireless microphone signals are detected by processing an input signal to determine a number of frequency bins within a channel frequency band having an energy level above a first predefined threshold (S12-09-2010