초록 ▼

Network bit efficiency for transmitting a limited size data frame over a digital communication system is enhanced by a macro-header encoding mechanism which replaces plural header portions of a data frame sequence with a single macro-header byte. The macro-header may be representative of protocol an

Network bit efficiency for transmitting a limited size data frame over a digital communication system is enhanced by a macro-header encoding mechanism which replaces plural header portions of a data frame sequence with a single macro-header byte. The macro-header may be representative of protocol and signal processing operation fields that would otherwise require a longer overhead sequence as a precursor to data transmission. At the receiver, the macro-code is translated into a predefined sequence of opcodes, parameters and data bytes. Whenever the receiver requires another opcode, parameter or data byte, it initially looks to the macro-code. Otherwise, the necessary byte is obtained from the data frame segment being interpreted. Within a frame of data a multi-bit parameter header includes a first bit indicating whether the message is being aborted, a second bit indicating whether the frame is the first frame in the message, a third bit indicating whether the frame is the last frame in the message, a fourth bit indicating whether a sequence number follows, a fifth bit indicating whether the frame contains data representative of the length of the frame, a sixth bit indicating whether the frame contains data, a seventh bit indicating whether the frame contains frame check sequence signals, and an eighth bit indicating whether immediately following is an extension parameter header.

대표청구항 ▼

A method of transmitting a frame of digital data over a digital communications channel from a first site to a second site comprising the steps of: (a) specifying a plurality of multi-bit communication control codes, that are normally appended to digital data to be transmitted over said digital commu

A method of transmitting a frame of digital data over a digital communications channel from a first site to a second site comprising the steps of: (a) specifying a plurality of multi-bit communication control codes, that are normally appended to digital data to be transmitted over said digital communications channel, said control codes being employed at said second site to recover said digital data from a received frame; (b) generating a multi-bit macro-code as a substitute representation of said plurality of communication control codes; (c) combining said macro-code and digital data within a respective frame for transmission; and (d) transmitting said respective frame over said communication channel to said second site.