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Assignee: Panasonic Technologies, Inc.


Location: Princeton, NJ
No. of patents: 59

1    
NumberTitleIssue Date
6275471Method for reliable real-time multimedia streaming
A method is provided for reliable real-time data streaming in a multimedia delivery system. The system is implemented using a real-time protocol that is based on the well-known Real-time Transport Protocol (RTP) suite which provides a framework for implem...
08/14/2001
6134369Compact optical waveguide
A compact optical waveguide employs a photonic band gap element as a reflector to enable a light beam to be reflected at angles greater than the critical angle. The photonic band gap device is a two-dimensional array of columnar holes formed in the substr...
10/17/2000
6101547Inexpensive, scalable and open-architecture media server
Multi-media servers provide clients with streaming data requiring soft real-time guarantee and static data requiring a large amount of storage space. The servers use a pull-mode protocol to communicate with clients through a real-time network. Separate da...
08/08/2000
6097422Algorithm for fast forward and fast rewind of MPEG streams
A transport system allows delivery of MPEG video streams from a network server to a media client while avoiding network delays associated with transition between files contained in these streams. A buffering system, a transport controller, and a counter a...
08/01/2000
6061720Seamless scalable distributed media server
The distributed multimedia server employs modular server elements that connect with client systems through a high bandwidth network. The server elements are connected in interleaved fashion with the switching elements and the data representing different m...
05/09/2000
6047093Method and means for enhancing optical character recognition of printed documents
A document marker, including first values dependent upon the layout and the contents of the document and assigned by generating or preprocessing software, is provided in machine-readable symbology on the face of a printed version of the document. The mark...
04/04/2000
5883677Method and apparatus for managing multiple outside video service providers
A method and apparatus for receiving, organizing and presenting program information to a display device in a home from at least two outside sources such as CATV, telephone companies (TELCOs) and direct broadcast satellite (DBS) is disclosed. A distributio...
03/16/1999
5852684Multimedia rendering marker and method
A marker encoded and provided in the side channel of an analog rendering provides digital information about the analog rendering with which it is simultaneously provided. Perceptible non-intrusive, computer-interpretable encodings, incorporated into print...
12/22/1998
5826230Speech detection device
The device detects the beginning and ending portions of speech contained within an input signal based on the variance of smoothed frequency band limited energy and the history of the smoothed frequency band limited energy within the signal. The use of the...
10/20/1998
5809076Method for automatically independently providing asynchronous brouter address information to remote control units
A network configuration communication system and method comprising at least one brouter for automatically broadcasting its address and other network configuration information and at least one remote control device for receiving brouter broadcasts and auto...
09/15/1998
5809498Method of locating a penstroke sequence in a computer
A system and method for storage and retrieval of pictographic images as computer file names. Upon generation of an input image, the computer saves the image and extracted spatial and temporal information about the generation of the image. The extracted in...
09/15/1998
5802554Method and system for reducing memory access latency by providing fine grain direct access to flash memory concurrent with a block transfer therefrom
A system and method for reducing access latency to stable storage are described. A technique referred to as fault trickling is used to improve access latency to stable storage such as flash memory. In particular, data requests from a central processing un...
09/01/1998
5794192Self-learning speaker adaptation based on spectral bias source decomposition, using very short calibration speech
A speaker adaptation technique based on the separation of speech spectra variation sources is developed for improving speaker-independent continuous speech recognition. The variation sources include speaker acoustic characteristics, and contextual depende...
08/11/1998
5793903Multimedia rendering marker and method
A marker encoded and provided in the side channel of an analog rendering provides digital information about the analog rendering with which it is simultaneously provided. Perceptible non-intrusive, computer-interpretable encodings, incorporated into print...
08/11/1998
5768423Trie structure based method and apparatus for indexing and searching handwritten databases with dynamic search sequencing
A method of searching for one of a plurality of objects that matches an input sequence of handwritten objects is provided. The objects are modeled by concatenating members of a set of component objects. A Trie structure representing the plurality of objec...
06/16/1998
5757959System and method for handwriting matching using edit distance computation in a systolic array processor
Apparatus and a method for comparing an electronic handwritten pattern to a stored string are provided. The string includes a group of portions, each having at least one stroke. Movement of a stylus forms the pattern, and a sequence of strokes is generate...
05/26/1998
5754308System and method for archiving digital versions of documents and for generating quality printed documents therefrom
An inventive page encoding, printing, retrieval and archiving system and method wherein document information designators are encoded for pages. The designator includes information regarding the location of the digital representation of the page and option...
05/19/1998
5748807Method and means for enhancing optical character recognition of printed documents
A document marker, including first values dependent upon the layout and the contents of the document and assigned by generating or preprocessing software, is provided in machine-readable symbology on the face of a printed version of the document. The mark...
05/05/1998
5734882Pictographic bitmap naming of files in pen-based computer systems
A system and method for storage and retrieval of pictographic images as computer file names. Upon generation of an input image, the computer saves the image and extracted spatial and temporal information about the generation of the image. The extracted in...
03/31/1998
5710916Method and apparatus for similarity matching of handwritten data objects
Apparatus for determining a distance between two handwritten strings in a database. A processor extracts global features from each string. The processor divides the string into strokes, and identifies a plurality of bounding boxes. Each box contains a dif...
01/20/1998
5706435System for maintaining data coherency in cache memory by periodically broadcasting a single invalidation report from server to clients
A method and system are provided for maintaining coherency between a server processor and a client processor that has a cache memory. The server may, for example, be a fixed location mobile unit support station. The client may, for example, be a palmtop c...
01/06/1998
5703972Certifiable optical character recognition
A certificate, calculated on the text of a document to be reproduced, is included in the document in a form which is machine-readable. Upon optical character recognition scanning, or other digitizing reproduction, the certificate is also scanned and store...
12/30/1997
5696878Speaker normalization using constrained spectra shifts in auditory filter domain
A speaker normalization method is described based on spectral shifts in the auditory filter domain. The method is characterized by using an estimated vocal tract length as a criterion to determine the spectral shift value. Certain constraints are found to...
12/09/1997
5677990System and method using N-best strategy for real time recognition of continuously spelled names
A multipass recognition strategy selects the N-best hypotheses resulting from each pass and propagates these N-best to the next pass. This strategy outperforms conventional hidden Markov model recognizers using a grammar constraining all possible names. R...
10/14/1997
5664059Self-learning speaker adaptation based on spectral variation source decomposition
A self-learning speaker adaptation method for automatic speech recognition is provided. The method includes building a plurality of Gaussian mixture density phone models for use in recognizing speech. The Gaussian mixture density phone models are used to ...
09/02/1997
5659313System and method for reducing noise during analog to digital conversion
A system and method for reducing signal-to-noise ratio in a multi-component analog signal during analog to digital conversion. The multi-component analog signal is made up of a plurality of separate analog signals, with each of the separate analog signals...
08/19/1997
5649023Method and apparatus for indexing a plurality of handwritten objects
A method for indexing a plurality of handwritten objects is provided. A B-tree data structure of order m is generated, where m is an integer. The B-tree has a plurality of nodes divided into a plurality of levels ordinally numbered 0th through ...
07/15/1997
5640488System and method for constructing clustered dictionary for speech and text recognition
The dictionary is broken into clusters by first grouping the dictionary according to a rule based procedure whereby the dictionary is sorted by word length and alphabetically. After sorting, a plurality of first cluster centers is generated by selecting t...
06/17/1997
5613084Interpolation filter selection circuit for sample rate conversion using phase quantization
A filter selector generates a filter address value to select one of a number of frequency characteristics of a filter to resample a first data signal from a first segment of data in order to generate second sampled data signal in a second segment of data....
03/18/1997
5610604Analog to digital converter providing varying digital resolution
An analog to digital converter which includes a resistive network for generating a number of first reference voltages related to each other by a first linear relationship and a number of second reference voltages related to each other by a second linear r...
03/11/1997
5600682Asynchronous data transmitting and receiving system
A system and method for the transmission and recovery of asynchronous data. For instantaneous synchronization, the receiver is equipped with a high frequency timing base which has a far higher frequency than either the data-generating or transmitting rate...
02/04/1997
5598523Method and system for displayed menu activation using a matching distinctive arrangement of keypad actuators
An apparatus for controlling equipment from a remote location is disclosed. A control keypad having a distinctive key arrangement such as an array is used to interact with a display device (e.g. TV), located independently from the control keypad. A contro...
01/28/1997
5587742Flexible parallel processing architecture for video resizing
A system for converting a digital input signal having a vertical and horizontal dimension into a digital output signal having a different horizontal and vertical dimension than that of the digital input signal. The digital input signal is fed into a first...
12/24/1996
5586200Segmentation based image compression system
An image processing system encodes a natural image into a segmented or mosaic image having well-defined edges and a residual image. The segmented image is encoded using a lossless encoding technique while the residual image is encoded using a lossy techni...
12/17/1996
5581704System for maintaining data coherency in cache memory by periodically broadcasting invalidation reports from server to client
A method and system are provided for maintaining coherency between a server processor and a client processor that has a cache memory. The server may, for example, be a fixed location mobile unit support station. The client may, for example, be a palmtop c...
12/03/1996
5580471Apparatus and method for material treatment and inspection using fiber-coupled laser diode
Apparatus and method for the precision treatment of a material using a semiconductor diode for generating a plurality of laser light beams, optical fibers coupled to the diode for transmitting and combining the light beams, and a scanner for scanning the ...
12/03/1996
5574513Color selection aperture correction circuit
A video signal processor controls aperture correction of the video signal by detecting the occurrence of particular colors in the image produced by the video signal. The particular color, for example, fleshtone, is detected as a ratio of the amplitude of ...
11/12/1996
5562842Material treatment apparatus combining a laser diode and an illumination light with a video imaging system
Apparatus for laser treatment of a material includes a source that generates a laser beam which a lens focuses into a focused beam having a predetermined cross-sectional diameter defining a spot. A dichroic mirror directs the focused beam along an optical...
10/08/1996
5563508Non-contact resistivity measurement apparatus and method using femtosecond laser pulses to create an electron flow
Apparatus and method for measuring the resistivity of a material without contacting or damaging the material, using a current and voltage meter connected to a first probe and a second probe. The probes are placed adjacent the material and in spaced relati...
10/08/1996
5553284Method for indexing and searching handwritten documents in a database
A method for indexing electronic handwritten documents is provided. Each document includes a plurality of output symbols in an output sequence, and is modeled by a respective Hidden Markov Model (HMM). The HMMs share a common alphabet and a common sequenc...
09/03/1996
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