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Interface between communications channel and processor

A communication channel and processor technology, applied in telephone communication, electrical digital data processing, instruments, etc., can solve the problems of less data and more data, and achieve the effect of fast response, avoiding data underload, and avoiding data overload.

Inactive Publication Date: 2005-05-11
MOTOROLA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mismatch or interface problem between the data transfer rate and the data processing rate tends to create a "bottleneck" problem, that is, either too much data is available from the processor for transfer (given the data transfer rate), or Too little data is available from the channel for subsequent processing (given computer processing power)

Method used

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  • Interface between communications channel and processor
  • Interface between communications channel and processor
  • Interface between communications channel and processor

Examples

Experimental program
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Embodiment Construction

[0018] Referring to FIG. 1, FIG. 1 is a generalized block diagram illustrating a first embodiment of an interface device 101 in accordance with the present invention. Figure 1 shows a DTE 102, such as a personal computer, file server or workstation, containing a processor 103, such as a PowerPC(R) or Pentium(R) processor. The processor is connected by wire, cable or bus 104 to interface means 101 which is further connected to a communication channel (or "channel") 105 for data transmission and reception. The lines, cables or bus 104 can be any means used to connect a computer, such as an ISA or PCI bus or a PCMCIA standard compliant slot. Referring below to Figure 3 and Figure 4Discussing in detail the interface unit 101, which implements functions typically found in modems such as ring detection, pulse or tone dialing, and digital-to-analog conversion. Processor 103 contains or runs a communications application, such as a modem application, and typically implements other mo...

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PUM

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Abstract

An apparatus and method for interfacing between a processor usable in data terminal equipment with communication applications, such as a computer, and a communication channel, the purpose of which is to use the computer processor without additional or redundant microprocessor or digital signal processor components provide data transmission and reception over the communication channel. The apparatus and method provide for data transmission between an interface device and a communication channel at a first, defined frequency corresponding to a particular data transmission rate. The apparatus and method provide for data transmission at a second, indeterminate frequency between a receiving apparatus and a processor, and by the computer processor between data transmission (or data reception) and data processing (e.g., modulation and demodulation) Intermediate data storage is provided in memory. The apparatus and method also proposes generating an interrupt signal to the processor to indicate the presence of received data for processing and the absence of digital signals for transmission.

Description

technical field [0001] The present invention relates generally to data communication devices, and more particularly to a method and apparatus for data transmission and data reception interfacing between a processor and a communication channel. Background technique [0002] In general, programmable, processor-controlled data terminal equipment ("DTEs"), such as personal computers, workstations and data terminals, are gaining popularity in schools, workplaces and society. In addition, processor power is increasing significantly with the adoption of faster and more powerful processors in computers, such as Motorola's PowerPC(R) processor and Intel's Pentium(R) processor. These processors can be programmed to perform a wide variety of functions. [0003] Data Communications Devices (“DCDs”), such as analog and digital modems, are commonly used between various data terminal equipment on communication channels such as the Public Switched Telephone Network (“PSTN”) or Integrated S...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/12H04M11/00
CPCG06F13/128H04M11/00
Inventor 马尼坎姆·R·斯里德哈尔黄敏小约汉·沃特曼蒂莫西·艾伦·里斯
Owner MOTOROLA INC
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