frame buffer


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frame buffer

[′frām ‚bəf·ər]
(computer science)
A device that stores a television picture or frame for processing.

frame buffer

(hardware)
Part of a video system in which an image is stored, pixel by pixel and which is used to refresh a raster image. The term "video memory" suggests a fairly static display whereas a frame buffer holds one frame from a sequence of frames forming a moving image.

Frame buffers are found in frame grabbers and time base correction systems, for example.

frame buffer

An area of memory used to hold the frame of data that is continuously being sent to the screen. The buffer is the size of the maximum image that can be displayed and may be a separate memory bank on the graphics card (display adapter) or a reserved part of regular memory. Sophisticated graphics systems are built with several memory planes, each holding one or more bits of the pixel. See video RAM. See also frame grabber.
References in periodicals archive ?
For example, to support a paravirtualized frame buffer on Linux, a Linux front-end driver would write the buffer of the frame it got from user space into a shared memory area; it would then signal the hypervisor using hypervisor calls to output the frame via a back-end driver.
-- NVIDIA Quadro FX 1500 -- Provides high performance coupled with two dual-link DVI connectors, 256MB GDDR3 frame buffer memory and HD video output
Features include resolution of 1344 x 1024 pixel, 12-bit dynamic range, exposure time of 5 [micro]s to 1 hr, and internal frame buffer for continuous image capture (64-MB min).
A frame buffer is released if buffer for its predecessor frame has already been released.
Liquid chrome 5.6 also features a real-time frame buffer for video output from Pinnacle Commotion Pro, Adobe After Effects and Discreet combustion, as well as ASIO drivers for no-latency audio output from Pinnacle Steinberg Nuendo.
The MiMagic 6 includes 1.7 megabits of internal SRAM for video and graphics frame buffer; dedicated hardware for pre-processing of camera input; a 2D BitBLT graphics engine to improve performance of Graphical User Interfaces; dual video overlay datapaths, and numerous input/output (I/O) devices such as UARTs, USB, and memory card controllers.
Key features of the new controller include a 64-bit 2D graphics accelerator, embedded memory for LCD frame buffer, and flexible CPU interface.
The VS2000 feature set includes a 60 MHz 32-bit Lightfoot RISC CPU core, 10/100 Ethernet MAC with a 4KB frame buffer SRAM, external memory controller with 32MB addressing range, configurable 8- or 32-bit external memory bus, glueless interface including four individually-programmed chip selects, two cache controllers, two UARTS, three SPI ports, watchdog timer, real-time clock and interrupt controller.
The DP83016's 256Kbytes on-chip frame buffer and memory allocation algorithm provides the most optimum solution without the need for any external memory.
CyberALADDiN-T brings significant cost savings to the notebook PCs by eliminating the need for an external frame buffer and taking full advantage of the Shared Memory Architecture (SMA).
The unit boasts a chip speed of 83 MHz, a 2 MB SDRAM frame buffer, a power consumption of only 0.3 W, and supports for a variety of SXGA, SGA, SVGA and VGA LCD displays.
Typically, an array of memory, called a frame buffer, is used to store information such as color and opacity for each pixel or voxel.