Resources Contact Us Home
Basic input-output system (BIOS) read-only memory (ROM) with capability for vertical scrolling of bitmapped graphic text by columns

Image Number 17 for United States Patent #6078306.

Data representing bitmapped graphics and/or text characters is stored in a video buffer or memory of a computer. A window is designated that includes contiguous rows and columns of data to be scrolled. The data in the window is vertically scrolled by columns. One column can be scrolled at a time, or two or more adjacent or alternating columns can be scrolled at a time. The column scrolling method is faster than scrolling by rows when the number of rows in the window is small and/or the number of rows to scroll is high. Program instructions for implementing the scrolling are preferably stored in a Basic Input-Output System (BIOS) Read-Only Memory (ROM) chip to provide a built-in, backward compatible low resolution display capability, e.g. a Color Graphics Adapter (CGA) text display, for a newer computer or other data processing device.

  Recently Added Patents
Advanced CAPTCHA using images in sequence
Light emitting device
Methods of forming semiconductor devices having diffusion regions of reduced width
Modified binding proteins inhibiting the VEGF-A receptor interaction
Nitrogen and hindered phenol containing dual functional macromolecular antioxidants: synthesis, performances and applications
Printing system, information processing apparatus, print job processing method, information processing method, program, and storage medium
Transmitting apparatus and retransmitting method
  Randomly Featured Patents
External counterpulsation apparatus
Bridged metallocenes for olefin copolymerization
Display device and driving device for a light source
Float for humidification chamber
Integrated power amplifier arrangement
Building construction
Safety device for electronic equipments
Semiconductor device, refreshing method thereof, memory system, and electronic instrument
Fiber reinforced composite shaft with metallic connector sleeves mounted by longitudinal groove interlock
Discharge valve comprising a flexible ringed tube for toilets