Data Circuit Buffering Error
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physical memory storage used to temporarily store data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a microphone) or just before it is sent buffering definition to an output device (such as speakers). However, a buffer may be used when moving data jitter in data communication between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in a fixed memory location in hardware—or by what is buffer in chemistry using a virtual data buffer in software, pointing at a location in the physical memory. In all cases, the data stored in a data buffer are stored on a physical storage medium. A majority of buffers are implemented in software, which buffering in operating system typically use the faster RAM to store temporary data, due to the much faster access time compared with hard disk drives. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming. A buffer often adjusts timing by implementing a queue (or FIFO) algorithm in memory, simultaneously
What Is Buffer In Computer
writing data into the queue at one rate and reading it at another rate. Contents 1 Applications 2 Telecommunication buffer 3 Buffer versus cache 4 Examples 5 History 6 See also 7 References Applications[edit] Buffers are often used in conjunction with I/O to hardware, such as disk drives, sending or receiving data to or from a network, or playing sound on a speaker. A line to a rollercoaster in an amusement park shares many similarities. People who ride the coaster come in at an unknown and often variable pace, but the roller coaster will be able to load people in bursts (as a coaster arrives and is loaded). The queue area acts as a buffer—a temporary space where those wishing to ride wait until the ride is available. Buffers are usually used in a FIFO (first in, first out) method, outputting data in the order it arrived. Buffers can increase application performance by allowing synchronous operations such as file reads or writes to complete quickly instead of blocking while waiting for hardware interrupts to access a physical disk subsystem; instead, an operating system can immediately return a successful result from an API call, allowing an application to continue processing while the kernel completes the disk operation in the background. Further benefits can be achieved if the application is reading or writing small blocks of data that do not correspond to the block size of the disk subsystem, allowing a buffer to be use
a DVD in response to a request from a host. When a data request is issued, a portion of the request containing the target ID for the target data block is used by a comparator circuit to locate the target data block. Another portion of the http://www.google.com/patents/US6701391 request...http://www.google.com/patents/US6701391?utm_source=gb-gplus-sharePatent US6701391 - System for stop buffering when a count of stored data blocks from a DVD matches an associated data block number of a requested data block setAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS6701391 B1Publication typeGrantApplication numberUS 09/487,088Publication dateMar 2, 2004Filing dateJan 19, 2000Priority dateJan 19, 2000Fee what is statusPaidPublication number09487088, 487088, US 6701391 B1, US 6701391B1, US-B1-6701391, US6701391 B1, US6701391B1InventorsMehran Ayat, Nedi NadershahiOriginal AssigneeOak Technology, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (9), Referenced by (21), Classifications (14), Legal Events (7) External Links:USPTO, USPTO Assignment, EspacenetSystem for stop buffering when a count of stored data blocks from a DVD matches an associated data block number of a requested data block set what is buffer US 6701391 B1Abstract A method and apparatus for transferring optical data from a DVD in response to a request from a host. When a data request is issued, a portion of the request containing the target ID for the target data block is used by a comparator circuit to locate the target data block. Another portion of the request containing the number of data blocks requested is used by a monitoring circuit to monitor data block transfer from a DVD to a data buffer once the target data block is located. The monitoring circuit stops data transfer when all of the requested data blocks have been transferred. Each data block is transferred into a data buffer containing areas separated by pointers. In a scratch area of the data buffer, the data block is error corrected, error checked and descrambled. After error checking and descrambling, the data portions of the data block are transferred to a data area in the data buffer, the auxiliary portions of the data block are transferred to an auxiliary area in the data buffer