Patent ID: 6058149
Filing Date: 2000-05-02
Classification: H04J

Abstract:
A method of transmitting and receiving a frame including unique pattern information indicative of a starting point of digital information, said method comprising the steps of:(a) performing a receive synchronizing process in which the frame is pulled in a given phase of a machine cycle equal to m which is equal to (1/N).times.L where L denotes the number of bits forming the frame, N is a positive integer and m is a positive integer larger than 2;(b) performing, in a receive process executing phase forming part of a same machine cycle as that of the step (a), a receive process in which receive control channel data contained in a received frame is written into a shared memory in accordance with first m-bit stream program information which defines the receive process and is stored in the shared memory; and(c) performing, in a transmit process executing phase forming another part of the same machine cycle, a transmit process in accordance with second m-bit stream program information which defines a transmit procedure and is stored in the shared memory while reading transmit control channel data stored in the shared memory, whereby the transmit control channel data is transmitted in a phase of a bit level or a clock level;(d) correcting a delay time of control channel data received under a situation in which there is a time difference between a detection of the pattern information carried out in the receive synchronizing process and a write timing of the shared memory; and(e) correcting a delay time of data to be transmitted under a situation in which there is a time difference between a read timing of the shared memory and a given transmit frame starting timing externally supplied.