Patents by Inventor Mark Hahm

Mark Hahm has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070025429
    Abstract: A baseband processing module according to the present invention includes a multi-path scanner module. The multi-path scanner module is operable to receive timing and scrambling code information regarding an expected multi-path signal component of a WCDMA signal. Then, the multi-path scanner module is operable to identify a plurality of multi-path signal components of the WCDMA signal by descrambling, despreading and correlating a known symbol pattern of/with a baseband RX signal within a search window. The multi-path scanner module is operable to determine timing information for the plurality of multi-path signal components of the WCDMA signal found within the search window and to pass this information to a coupled rake receiver combiner module.
    Type: Application
    Filed: August 31, 2005
    Publication date: February 1, 2007
    Inventors: Mark Hahm, Baoguo Yang
  • Publication number: 20070025428
    Abstract: A baseband processing module includes TX processing components, a processor, memory, an RX interface, and a cell searcher module. The TX processing components receive outbound data, process the outbound data to produce a baseband TX signal, and output the baseband TX signal to a RF front end of the RF transceiver. The RX interface receives a baseband RX signal from the RF front end carrying a WCDMA signal. The cell searcher module receives the baseband RX signal, scans for WCDMA energy within the baseband RX signal, acquires slot synchronization to the WCDMA signal based upon correlation with a Primary Synchronization Channel (PSCH) of the WCDMA signal, acquires frame synchronization to, and identify a code group of, the WCDMA signal based upon correlation with a Secondary Synchronization Channel (SSCH) of the WCDMA signal, and identifies the scrambling code of the WCDMA signal based upon correlation with a Common Pilot Channel (CPICH) of the WCDMA signal.
    Type: Application
    Filed: September 6, 2005
    Publication date: February 1, 2007
    Inventors: Mark Hahm, Li Chang, Nelson Sollenberger
  • Publication number: 20060274715
    Abstract: A baseband processing module for use within a Radio Frequency (RF) transceiver includes a downlink/uplink interface, TX processing components, a processor, memory, RX processing components, and a turbo decoding module. The RX processing components receive a baseband RX signal from the RF front end, produce a set of IR samples from the baseband RX signal, and transfer the set of IR samples to the memory. The turbo decoding module receives at least one set of IR samples from the memory, forms a turbo code word from the at least one set of IR samples, turbo decodes the turbo code word to produce inbound data, and outputs the inbound data to the downlink/uplink interface. The turbo decoding module performs metric normalization based upon a chosen metric, performs de-rate matching, performs error detection operations, and extracts information from a MAC packet that it produces.
    Type: Application
    Filed: June 1, 2005
    Publication date: December 7, 2006
    Inventors: Mark Hahm, Li Chang, Michiel Lotter
  • Publication number: 20060270369
    Abstract: A baseband processing module for use within a Radio Frequency (RF) transceiver includes a downlink/uplink interface, TX processing components, a processor, memory, RX processing components, and a turbo decoding module. The RX processing components receive a baseband RX signal from the RF front end, produce a set of IR samples from the baseband RX signal, and transfer the set of IR samples to the memory. The turbo decoding module receives a set of IR samples from the memory, forms a turbo code word from the set of IR samples, turbo decodes the turbo code word to produce inbound data, and outputs the inbound data to the downlink/uplink interface. The turbo decoding module performs metric normalization based upon a chosen metric, performs de-rate matching on the set of IR samples, performs error detection operations, and extracts information from a MAC packet that it produces.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Inventors: Mark Hahm, Li Chang
  • Publication number: 20060268929
    Abstract: A baseband processing module for use within a Radio Frequency (RF) transceiver includes a downlink/uplink interface, TX processing components, a processor, memory, RX processing components, and a turbo decoding module. The RX processing components receive a baseband RX signal from the RF front end, produce a set of IR samples from the baseband RX signal, and transfer the set of IR samples to the memory. The turbo decoding module receives at least one set of IR samples from the memory, forms a turbo code word from the at least one set of IR samples, turbo decodes the turbo code word to produce inbound data, and outputs the inbound data to the downlink/uplink interface. The turbo decoding module performs metric normalization based upon a chosen metric performs error detection operations, and extracts information from a MAC packet that it produces.
    Type: Application
    Filed: May 31, 2005
    Publication date: November 30, 2006
    Inventors: Jie Lai, Mark Hahm
  • Publication number: 20050281331
    Abstract: In a video processing system, a method and system for dynamically configurable DCT/IDCT module in a wireless handset are provided. A processor may be used to configure a quantization scheme and video format mode of operation and to configure a processing network in a DCT/IDCT module. The mode of operation may depend on whether the received video signal is in JPEG, MPEG, and/or H.263 format. The processing network may be configured into a DCT processing network configuration or an IDCT processing network configuration based on whether the received video signal is to be encoded or decoded respectively. The DCT/IDCT module may comprise a FIFO, an adder/subtractor, a multipler/accumulator, a plurality of digital dividers, and a de-quantizer. The plurality of digital dividers may comprise a 12-bit divider and an 7-bit divider. The mode and configuration modifications may be dynamically performed during operation of the wireless handset.
    Type: Application
    Filed: July 14, 2004
    Publication date: December 22, 2005
    Inventors: Mark Hahm, Li Chang
  • Publication number: 20050094730
    Abstract: A video processor within a wireless terminal, that includes a video interface that receives incoming video information and that provides outgoing video information, a processing module operably coupled to the video interface, and a video accelerator module and a motion processing co-processor operably coupled to the processing module. The processing of the incoming video information and the outgoing video information is performed by the combination of the processing module, co-processor and the video accelerator module. Compute intensive operations may be offloaded from the processing module onto the video accelerator to improve overall system efficiency.
    Type: Application
    Filed: June 16, 2004
    Publication date: May 5, 2005
    Inventors: Li Chang, Mark Hahm, Weiping Pan, Ruei-Shiang Suen