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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 6229894 | Method and apparatus for access to user-specific encryption information A method and apparatus for accessing user specific encryption information is accomplished upon receiving a request for access to user specific encryption information from a requesting entity. Based on the identity of the requesting entity and/or the type ... | 05/08/2001 |
| 6141024 | Generating color text A rasterizer is used with a processor capable of providing raster data indicative of a pattern of pixels to be formed on a display. Each pixel has an attribute represented by a data value. The rasterizer has a replicator connected to form at least two cop... | 10/31/2000 |
| 6121978 | Method and apparatus for graphics scaling A method and apparatus for scaling graphics data is begins by retrieving a line segment of graphics data from a frame buffer, or memory, which stores the graphics data in lines. Once the line segment of a current line has been retrieved, a corresponding l... | 09/19/2000 |
| 6118493 | Method and apparatus for selecting a channel from a multiple channel display A method and apparatus that allows a user to preview live audio and/or video of a channel displayed in a multiple channel selection display prior to making a complete selection is generally accomplished by providing pixel information for displaying visual... | 09/12/2000 |
| 6064407 | Method and apparatus for tiling a block of image data A method and apparatus for tiling a block of image data is accomplished by first receiving a set of parameters that describe the block of image data. An address is determined based on the set of parameters, and the address is translated to a corresponding... | 05/16/2000 |
| 6043821 | Method and apparatus for rendering pixel information from blended texture maps A method and apparatus for rendering pixel information from blended texture information is accomplished by generating first texture information and second texture information for a given pixel location. Having generated this information, the first and sec... | 03/28/2000 |
| 6040837 | Method and apparatus for space variable texture filtering A method and apparatus for space variant texture filtering begins when texture coordinates for a given pixel of an object being rendered are received. From the texture coordinates, first and second axis derivatives are determined. When the first and secon... | 03/21/2000 |
| 6038520 | Method and apparatus for application's specific testing of assembled circuits A method and apparatus for testing specific assembled circuits begins by configuring a plurality of applications specific testing entities to test assembled circuits, where the configuring is based on the types of assembled circuits being tested. Next, a ... | 03/14/2000 |
| 6028586 | Method and apparatus for detecting image update rate differences A method and apparatus for detecting differences between an image update rate and a display update rate and to provide a viable solution that produces minimal adverse visual effects is achieved by first detecting an image delineation from a stream of imag... | 02/22/2000 |
| 6023281 | Method and apparatus for memory allocation A method and apparatus for memory allocation in a multi-processor system is accomplished by mapping portions of a shared memory to a first and second processor. The mapping is performed such that either of the processors' portions can be enlarged or reduc... | 02/08/2000 |
| 6000834 | Audio sampling rate conversion filter A 1:2 or 2:1 audio sampling rate conversion filter converts audio signals from a first sampled rate to a second sampled rate has a multi-coefficient subfilter for receiving a plurality of audio signal samples from buffer memory obtained by sampling at the... | 12/14/1999 |
| 5999860 | Method and apparatus for optimizing digital processing A method and apparatus for optimizing digital processing in a computer system is accomplished when at least one of a plurality of digital processing operations (i.e., a set of programming instructions) receives a user request. The user request may include... | 12/07/1999 |
| 5990910 | Method and apparatus for co-processing multi-formatted data A method and apparatus for co-processing multi-formatted data which begins when a host processor writes data blocks, in a substantially continuous manner, into memory. Each of the data blocks includes a plurality of data elements and each data element has... | 11/23/1999 |
| 5985151 | Method and apparatus of membrane separation A method and apparatus for separation of substances using a membrane separation device includes a housing which is mechanically coupled to a substance inlet and a permeate outlet. The housing also supports a membrane filter that includes a tubular structu... | 11/16/1999 |
| 5905621 | Voltage scaling circuit for protecting an input node to a protected circuit A voltage scaling circuit for protecting an input node to a protected circuit uses a voltage shifting circuit that includes two nmos transistors. One nmos transistor is configured as a bi-directional voltage follower and the other nmos transistor is confi... | 05/18/1999 |
