...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7353371 | Circuit to extract nonadjacent bits from data packets A method and device to copy data fields from one or more source packets to one or more result packets. In a SET function, adjacent data fields in a source packet is copied to respective destination data fields in a result packet governed by a field locator packet. I... | 04/01/2008 |
| 7352893 | Representing extended color gamut information A computer-readable medium of one embodiment of the invention is disclosed that has a data structure stored thereon to represent extended color gamut information for a pixel. The data structure has a number of data fields, where each data field is to store a number ... | 04/01/2008 |
| 7283665 | Encoding and decoding data to render 2D or 3D images A method of encoding data comprising: a) converting a first data set, representing pixels of a first image in an RGB format, to a second data set, representing pixels of the first image in an intensity-color format; b) discarding color data from the second data set ... | 10/16/2007 |
| 7262755 | Multi-tone display device A multi-tone display matrix display device including a matrix display panel having a matrix having plural X and Y direction signal lines lying at right angles to each other, intersecting points on the matrix being pixels of an image, an X direction driving section f... | 08/28/2007 |
| 7256791 | Rasterization of three dimensional images Rasterization of three-dimensional images are provided in which three-dimensional image data, which includes at least (x,y,z) coordinate and color information, are generated, organized, and stored at memory locations in one or more frame buffers in accordance with z... | 08/14/2007 |
| 7230600 | Repairable memory in display devices A display system includes a repairable memory that re-routes data when a defect exists in the memory. A significant bit in the display memory that would otherwise be corrupted by a bad memory cell is re-routed to a least significant bit position in the memory, and t... | 06/12/2007 |
| 7079162 | Matrix driven liquid crystal display module system, apparatus and method Provided are a color display driving principle obtained while taking into account a difference in eye sensitivity to the flickering of differently colored lights, a TFT liquid crystal display module structure that is adequate for this method, and a double-panel proj... | 07/18/2006 |
| 7068285 | Image converting apparatus and method thereof A system and method for converting color images divides a first image into first RGB values per pixel, determines which of the RGB colors in the first image has a greater specific gravity, converts the first RGB values into second RGB color values based on the color... | 06/27/2006 |
| 7054964 | Method and system for bit-based data access A system and a method for transcoding multiple media channels are provided. The system includes a first processor to parse a media data stream having one or more media data channels and a vector processor to decompress, scale, and then compress the parsed media chan... | 05/30/2006 |
| 7043087 | Image processing system An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer. The image decomposer decomposes the image into blocks. The block encod... | 05/09/2006 |
| 7039244 | Fixed-rate block based image compression An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer. The image decomposer decomposes the image into blocks. The block encod... | 05/02/2006 |
| 6995771 | Sparse refresh of display A method, apparatus, and signal-bearing medium for sending to a display device modified regions of a frame buffer. A frame buffer is divided into the regions, and data in the frame buffer represents pixels on the display device. The frame buffer accumulates writes u... | 02/07/2006 |
| 6987498 | Display unit and display method A pseudo-tone processing means color-reduces each RGB component of incoming display data using pseudo-tone processing. A frame memory stores the color-reduced display data before feeding it to a display through a drive means. Color reduction is performed so that the... | 01/17/2006 |
| 6975733 | Watermarking of digital images using wavelet and discrete cosine transforms The present invention relates to a method for embedding a watermark into a black and white or color digital image [D(x)]. Basically the inventive method comprises the steps of transforming the digital image using a wavelet transform [WC(y)], transforming a watermark... | 12/13/2005 |
| 6970208 | Block move engine with gamma and color conversions An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to present a first portion of an output data stream in response to a first portion of an input data stream. The second circuit may be configured to present a second por... | 11/29/2005 |
| 6947056 | Low power, variable precision DDA for 3D graphics applications An apparatus generally having a register, an adder circuit and a mask circuit is disclosed. The register may be configured to replace a current value with a new value in response to a clock value. The adder circuit may be configured to generate the new value by addi... | 09/20/2005 |
| 6930808 | Image processing apparatus and method A buffer memory has a plurality of blocks which are virtually broken up into a matrix pattern. An image processing apparatus has a memory controller for writing R, G, and B image data in the buffer memory in units of lines and in a predetermined color order, and rea... | 08/16/2005 |
| 6876400 | Apparatus and method for protecting a memory sharing signal control lines with other circuitry An apparatus such as a television signal receiver includes first and second circuit boards. The first circuit board includes a memory, and control circuitry for controlling at least one function of the apparatus. The second circuit board is operably coupled to the f... | 04/05/2005 |
| 6870578 | Apparatus and method for sharing signal control lines An apparatus such as a television signal receiver includes first and second circuit boards. The first circuit board includes a first device such as a memory, and control circuitry for controlling at least one function of the apparatus. The second circuit board is op... | 03/22/2005 |
| 6847410 | Picture data memory device with picture data input channels and picture data output channels A picture data memory device which can be used universally comprises a central picture data memory for storing picture data of a plurality of picture data input channels, in which case the stored picture data can additionally be read out via a plurality of picture d... | 01/25/2005 |
| 6556209 | Memory apparatus of digital video signal A memory apparatus of a digital video signal for storing color compressed video data is disclosed, the color compressed video data being compressed video data that represents components of three primary colors, the memory apparatus comprising a memory por... | 04/29/2003 |
| 6320592 | Method and apparatus for separating image data from a color system in image processing Raw image data is separated from color image data such that image data can be operated on independent of a color model. Alternatively, image data can be associated with a color model and image processing operations can operate on the image data in terms o... | 11/20/2001 |
| 6252613 | Matrix display addressing device A device for addressing a matrix screen such as a screen of the LCD or plasma type having a memory stage receiving, via a demultiplexing stage a plurality of sequences of digital data representing the previously digitized luminance video signals, and deli... | 06/26/2001 |
| 6233658 | Memory write and read control A memory control system includes a frame memory divided into N image memories. Serial input image data are sequentially written into the N image memories in rotation. Then, image data is concurrently read from each of the N image memories depending on a d... | 05/15/2001 |
| 6211891 | Method for enabling and configuring and AGP chipset cache using a registry A method for configuring an Accelerated Graphics Port (AGP) chipset having an AGP chipset cache. The method includes providing an operating system with a persistent data file, the persistent data file storing cache configuration parameter information for ... | 04/03/2001 |
| 6061069 | Apparatus and method of performing screen to screen blits in a color sliced frame buffer architecture A method and apparatus for moving pixel data from one area of a frame buffer to another in block fashion are provided. In one embodiment of the invention, pixel data is decomposed into its RGB component and each RGB component is stored into the frame buff... | 05/09/2000 |
| 5748947 | Information processing system for switchably processing data associated with straight line vectors An image-memory stores image data in a form such that the thus stored image data may be used for realizing the corresponding image on a recording medium. A straight-line-vector processing unit processes straight line vectors associated with image data pro... | 05/05/1998 |
| 5721884 | Apparatus for combining and separating color component data in an image processing system In a memory-to-memory data transfer apparatus, each of a plurality of memories connected to a memory bus is sequentially selected, and data which occupy predetermined positions in the data read from the selected memory are combined into a set of data. The... | 02/24/1998 |
| 5606347 | Devices systems and methods for flexible format data storage A memory device 72 is provided which includes a plurality of data storage locations each having an associated address and arranged as a plurality of planes 76. A data port 78, 86 is coupled to each of the planes 76. Control circuitry 78, 80, 82 is provide... | 02/25/1997 |
| 5581278 | Image display control system A display control system provided between a computer and a display device includes a plurality of display control LSI's for data transfer and also displays image data stored in a plurality of image memories having planes on the display device by controlli... | 12/03/1996 |
| 5479189 | 4 channel color display adapter and method for color correction A four channel color display processor is described using separated cyan, magenta, yellow, and black color descriptions for color components. Each color component is then modified to enable use with a color monitor utilizing red, green, and blue phosphors... | 12/26/1995 |
| 5428743 | Arrangement and method of accessing frame buffer in raster-scan type computer system A multiple-plane frame buffer is effectively accessed which is provided in a video signal generator in a raster-scan type computer system. The video signal generator further includes a video controller preceded by the multiple-plane frame buffer. The vide... | 06/27/1995 |
| 5422657 | Graphics memory architecture for multimode display system A display memory architecture which efficiently stores and processes true color and index mode pixels is disclosed. The R, G and B components of true color mode pixels occupy different groups of bit planes in different banks of a frame memory. In addition... | 06/06/1995 |
| 5334996 | Color display apparatus A color display apparatus which stores the color information of characters to be displayed in three storage planes (4R, 4C, 4B) of a character generator so that this information can be used in a display controller (21) in such a way that high-quality char... | 08/02/1994 |
| 5233690 | Video graphics display memory swizzle logic and expansion circuit and method A circuit controls the reordering of data as it is transferred to control a memory. The data to be reordered is presented such that the ordinate bit position within a data word is uniquely associated with a particular input to a data bus. The bus inputs, ... | 08/03/1993 |
| 5153574 | Interface for a thin display An interface for a thin display panel having timing circuit for taking a timing so as to introduce effective color display data into RAMs according to synchronizing signal, RAMs for storing said effective color display data, color data treating circuit fo... | 10/06/1992 |
| 5142272 | Method and apparatus for processing display color signal A color video signal processing method and apparatus wherein the compressed display data of each pixel consists of a color identification code and a color saturation data relative to the color or luminance of the pixel having the maximum saturation change... | 08/25/1992 |
| 5058040 | Simulation of a change in three-component color values by using two-component color values Based on a first color distribution which is formed by a first color in a color domain illuminated by an optical beam of a source color and is stored in a memory as picture elements, each representing an original color value, simulation is carried out for... | 10/15/1991 |
| 5043917 | Control method and apparatus therefor Bit map memories, which have addresses corresponding to orderly-arranged red, green and blue dots of a color display panel, are provided corresponding to red, green and blue colors, respectively, and a color array memory is provided which has prestored da... | 08/27/1991 |
| 5029111 | Shared bit-plane display system A multiuser display system in which the bit planes are shared by a plurality of user stations. A bus carries a superpixel containing bits from each of the bit planes in this system. Each user station is assigned particular bit planes and extracts the bits... | 07/02/1991 |