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Attorney: Johnson; William L.


Number of patents: 19
Last date: August 23, 2011

NumberTitleIssue Date
8005233Bass enhancement for audio
A method and apparatus for conditioning an audio input signal to enhance perception and reproduction of bass frequencies. Harmonics are generated and combined with a phase-shifted version of the audio input signal. Use of a controlled phase shift reduces or eliminat...
08/23/2011
8000485Virtual audio processing for loudspeaker or headphone playback
There are provided methods and an apparatus for processing audio signals. According to one aspect of the present invention there is included a method for processing audio signals having the steps of receiving at least one audio signal having at least a center channe...
08/16/2011
7930184Multi-channel audio coding/decoding of random access points and transients
A lossless audio codec encodes/decodes a lossless variable bit rate (VBR) bitstream with random access point (RAP) capability to initiate lossless decoding at a specified segment within a frame and/or multiple prediction parameter set (MPPS) capability partitioned t...
04/19/2011
7929708Audio spatial environment engine
An audio spatial environment engine for converting from an N channel audio system to an M channel audio system, where N is an integer greater than M, is provided. The audio spatial environment engine includes one or more correlators receiving two of the N channels o...
04/19/2011
7853022Audio spatial environment engine
An audio spatial environment engine for flexible and scalable up-mixing from an M channel audio system to an N channel audio system, where M and N are integers and N is greater than M, is provided. The input M channel audio is provided to an analysis filter bank whi...
12/14/2010
7668723Scalable lossless audio codec and authoring tool
An audio codec losslessly encodes audio data into a sequence of analysis windows in a scalable bitstream. This is suitably done by separating the audio data into MSB and LSB portions and encoding each with a different lossless algorithm. An authoring tool compares t...
02/23/2010
7668380Rate control of scalably coded images
A method of rate-control for a sequence of scalably coded images having transform coefficients partitioned into coding units coded in a plurality of quality increments having respective significance values. The method defines subsets each having one or more coding u...
02/23/2010
7593535Neural network filtering techniques for compensating linear and non-linear distortion of an audio transducer
Neural networks provide efficient, robust and precise filtering techniques for compensating linear and non-linear distortion of an audio transducer such as a speaker, amplified broadcast antenna or perhaps a microphone. These techniques include both a method of char...
09/22/2009
7207090High tension, surgical cable lock
A cable retaining device is suitable for retaining flexible cables at high load tensions. The device includes: a body including a void having a width that tapers from a wider rearward end to a narrower forward end; and a wedge shaped plug, capable of slidable insert...
04/24/2007
D534651Powered surgical screwdriver
01/02/2007
7114071Method and apparatus for embedding digital watermarking into compressed multimedia signals
A method and apparatus for adding watermark data to an input signal is provided. For this method watermark data is embedded into the input signal by modulating elements of the input signal to predefined relationships in reference to other elements of the input signa...
09/26/2006
7110605Digital intermediate (DI) processing and distribution with scalable compression in the post-production of motion pictures
Scalable image compression is exploited to facilitate the creative process in the post-production of motion pictures. Specifically, digital intermediate (DI) processing of motion pictures is enabled by dynamically rendering proxies in response to client requests. A ...
09/19/2006
7003467Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio
The present invention provides a method of decoding two-channel matrix encoded audio to reconstruct multichannel audio that more closely approximates a discrete surround-sound presentation. This is accomplished by subband filtering the two-channel matrix encoded aud...
02/21/2006
6931370System and method for providing interactive audio in a multi-channel audio environment
DTS Interactive provides low cost fully interactive immersive digital surround sound environment suitable for 3D gaming and other high fidelity audio applications, which can be configured to maintain compatibility with the existing infrastructure of Digital Surround...
08/16/2005
6840899Method and instrument for surgical delivery of biocompatible materials
A surgical instrument includes an elongated cannula having a forward expulsion end and a rearward breach end, arranged to include a bio-compatible material; a drive member arranged to urge the bio-compatible material in a reciprocating motion having two alternating ...
01/11/2005
6785151Quasi-synchronous, magnetic amplifier regulated dc-dc converter
A circuit and method provides a regulated dc—dc power conversion. Active switches, saturable core inductors, and a diode are used in a quasi-synchronous circuit. During a part of the cycle (the “blocking interval”) free-wheeling current is routed through free-...
08/31/2004
6768380Wideband, variable-bandwidth distributed amplifier
A variable bandwidth, distributed amplifier circuit includes an input transmission line; an output transmission line; and a plurality of amplifier cells having a respective plurality of cell inputs distributed along the input transmission line and cell outputs distr...
07/27/2004
6711431Non-imaging, computer assisted navigation system for hip replacement surgery
The invention includes: a locating system; a computer, interfaced to the locating system and interpreting the positions of tracked objects in a generic computer model of a patient's hip geometry; a software module, executable on the computer, which defines the patie...
03/23/2004
6589246Method of applying an active compressive force continuously across a fracture
A method of applying an active compressive force continuously across a fracture by wrapping fractured bone segments in an energy-inducing surgical cable having a predetermined elastic property that stretches about 30 to 100% of its original length. The ca...
07/08/2003
 
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