Patent for Sale:

Integrated circuits    

Fifteen U.S. patents and their international counterparts


This portfolio relates to integrated circuits and covers technology for:

- A CMOS differential operational amplifier.
- Device for compressing video data to transmit it in real time.
- High speed fuzzy processing and a fuzzy operation device which supplies various fuzzy operators.
- A wavelet transform processor capable of being used effectively in the video processing.
- A rectifier circuits that are used in power conversion devices. .
- An operational transconductance amplifier.
- High quality power supply appropriate for low power requirements.
- A scan conversion circuit for encoding and decoding videos, applicable to digital television.
- A high performance multiplier and a multiplier capable of removing nonlinear current using current mirror circuits..
- A switch coupled active forward converter.
- A parallel memory device able to process a large quantity of image data at a high rate.
- Safe data transmission.
- High speed packet switching controller.

The seller may consider selling these patents individually.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 330: Amplifiers

This is the generic class for amplifiers, included: Amplifiers having all types of active elements (or amplifying devices), amplifier systems having plural amplifier channels, cascade amplifiers, push-pull amplifiers and other amplifiers having plural amplifier devices. Also included are amplifiers with plural signal sources or plural loads. Amplifiers including the means coupling the signal source to the amplifier or coupling the amplifier to the load or between cascaded stages are also included. Amplifiers combined with tone control means. Amplifiers combined with amplitude (volume) control means whether by manual control, by control of an electrode D.C. bias. Amplifiers combined with power supply. Amplifiers combined with structural features of the amplifier or the amplifier circuit elements. Amplifiers having signal feedback means.

Subclass 253: Having field effect transistor
Subclass 258: Having common mode rejection circuit
Subclass 277: Including field effect transistor

Class 348: Television

Generating, processing, transmitting or transiently displaying a sequence of images, either locally or remotely, in which the local light variations composing the images may change with time.

Subclass 699: Motion vector generation
Subclass 700: Motion dependent key signal generation or scene change detection
Subclass E5.066: Movement estimation (EPO)

Class 375: Pulse Or Digital Communications

This is the generic class for pulse or digital communication systems using electrical or electromagnetic signals. Such communication includes transmitting an intelligence bearing signal from one point to another in the form of discrete variations in some parameter of the electrical or electromagnetic signal.

Subclass 225: Data rate
Subclass 240.25: Specific decompression process
Subclass E7.045: Concerning filter implementation (EPO)
Subclass E7.113: Sub-pixel accuracy (EPO)
Subclass E7.142: Transform coefficients scan, e.g., zig-zag scan (EPO)
Subclass E7.161: Input video signal characteristics (EPO)
Subclass E7.176: Block or macroblock (EPO)
Subclass E7.177: Transform coefficient (EPO)
Subclass E7.226: Involving transform coding, e.g., using discrete cosine transform (DCT) (EPO)
Subclass E7.229: Involving the use of at least one adaptive element, e.g., Joint Photographic Experts Group (JPEG) coding (EPO)

Class 706: Data Processing:Artificial Intelligence

This is a generic class for artificial intelligence type computers and digital data processing systems and corresponding data processing methods and products for emulation of intelligence (i.e., knowledge based systems, reasoning systems, and knowledge acquisition systems); and including systems for reasoning with uncertainty (e.g., fuzzy logic systems), adaptive systems, machine learning systems, and artificial neural networks.

Subclass 7: Having function calculator
Subclass 9: Defuzzification processing
Subclass 52: Reasoning under uncertainty (e.g., fuzzy logic)

Class 708: Electrical Computers: Arithmetic Processing And Calculating

This is the generic class for electrical apparatus and corresponding methods for performing calculation operations. There are three main divisions: 1. electrical hybrid calculating computers; 2. electrical digital calculating computers; 3. electrical analog calculating computers.

Subclass 626: Sum of cross products

Class 363: Electric Power Conversion Systems

Conversion systems wherein a single electrical source circuit is coupled to a single electrical load circuit.

Subclass 131: In transistor inverter systems
Subclass 134: Separately driven
Subclass 20: Single-ended, separately-driven type
Subclass 21.04: For forward-type converter
Subclass 60: Including semiconductor means
Subclass 89: With transistor control means in the line circuit

Class 358: Facsimile And Static Presentation Processing

Communication or reproduction of a static image or sequence of static images in which the local light, or density variations composing the image do not vary with time by a method or apparatus involving at least one of the following steps: (1) scanning a static image to capture an image-containing area by resolving it into an area; (2) communication of an image-representative signal or image-representative data over any supporting communication network; or (3) reproduction of an image-containing area in response to an image-representative signal or image-representative image data by reproducing a corresponding image area which at least one of the two dimensions is elemental, simultaneously or in a sequence. In this class, a facsimile system or method is a system or method for the communication or reproduction of an arbitrarily composed image in which the local light, or density variations composing the image do not vary with time, such as documents maps, charts, photographs, etc., but not motion picture film or video.

Subclass 1.9: Attribute control

Class 382: Image Analysis

This is the generic class for apparatus and corresponding methods for the automated analysis of an image or recognition of a pattern. Included herein are systems that transform an image for the purpose of (a) enhancing its visual quality prior to recognition, (b) locating and registering the image relative to a sensor or stored prototype, or reducing the amount of image data by discarding irrelevant data, and (c) measuring significant characteristics of the image.

Subclass 245: Run-length coding
Subclass 246: Huffman or variable-length coding

Class 323: Electricity: Power Supply Or Regulation Systems

This is the generic class for electrical systems wherein a single electrical source is coupled to a single electrical load circuit and means are provided which control the magnitude or level of the current or voltage of either or both of said circuits and/or the phase angle between the current or voltage of either or both of said circuits. This is also the generic class for transformer systems and impedance systems.

Subclass 313: To derive a voltage reference (e.g., band gap regulator)
Subclass 314: With additional stage
Subclass 315: Including parallel paths (e.g., current mirror)

Class 327: Miscellaneous Active Electrical Nonlinear Devices, Circuits, And Systems

This is the residual class for electrical devices, circuits or systems having an output not directly proportional to its input and comprising at least one component which can provide gain or can route electrical current and which device, circuit or system does not form a complete system such as is classified specifically elsewhere or a subcombination of utility only in such elsewhere classified system.

Subclass 296: Plural clock outputs with multiple inputs

Class 711: Electrical Computers And Digital Processing Systems: Memory

This class provides, within an electrical computer or digital data processing system, for the following processes and apparatus 1. for addressing memory wherein the processes and apparatus involve significant address manipulating (e.g., combining, translating, or mapping and other techniques for formatting and modifying address data) and are combined with specific memory configurations or memory systems; 2. for accessing and controlling memory (e.g., transferring and modifying address data, selecting storage devices, scheduling access); and 3. for forming memory addresses (e.g., virtual memory addressing, address translating, translation-lookaside buffers (TLBs), boundary checking, and page mode).

Subclass 5: For multiple memory modules (e.g., banks, interleaved memory)
Subclass 214: Operand address generation
Subclass 217: Generating a particular pattern/sequence of addresses
Subclass 218: Sequential addresses generation

Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 505: Parallel processors (e.g., identical processors)
Subclass 573: Plural address generators

Class 714: Error Detection/Correction And Fault Detection/Recovery

This class provides for process or apparatus for detecting and correcting errors in electrical pulse or pulse coded data; it also provides for process or apparatus for detecting and recovering from faults in electrical computers and digital data processing systems, as well as logic level based systems.

Subclass 758: Error correcting code with additional error detection code (e.g., cyclic redundancy character, parity)

Class 370: Multiplex Communications

This is the generic class for multiplexing or duplexing systems, methods, or apparatus.

Subclass 360: Switching control