Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Patching of a read only memory










Image Number 3 for United States Patent #6260157.

A processing device includes a ROM having program instructions and at leas one jump instruction stored therein, a patch program for patching the program instructions in the ROM, a RAM capable of storing the patch program and a patch vector table that indicates the location of the patch program. A processor executes the program instructions in the program ROM and uses the patch vector table to execute the patch program when one of the jump instructions is reached. The patch program may be stored in the RAM and the patch vector table may point to the address in the RAM at which the patch program is stored so that the processor jumps directly to the RAM to execute the patch program when it reaches the one of the jump instructions. Likewise, a patch engine may be used to locate a specified patch program, load the specified patch program into the RAM and execute the specified patch program when the processor reaches the one of the jump instructions.








 
 
  Recently Added Patents
Produce container and lid assembly
Circuit arrangement for a piezo transformer, and method therefor
Multicolored light converting LED with minimal absorption
Method and system for presenting live video from video capture devices on a computer monitor
Cosmetic product including vegetable oil blend
Controller with screen
Profiling activity through video surveillance
  Randomly Featured Patents
Zeolites modified with group VA metals
Systems and methods for performing static analysis on source code
Percussion musical instrument
Method and a device for controlling the vertical adjustment of a levelling plank
Data synchronization detection device, information recording device, information reproduction device, information recording format, signal processing device, information recording and reproduc
Motor drive system for camera
Apparatus and method for the determination of sorption bed characteristics
Process for surface-finishing inner surfaces of hollow bodies and apparatus for carrying out the process
Stabilization of high solids coatings with liquid compositions of triazine UV absorbers
Electrophotographic photosensitive member and electrophotographic apparatus, device unit and facsimile machine using the same