초록 ▼

A real time data transformation and transmission apparatus transforms data from a first data device and transfers the transformed data to a second data device which need not have a data transfer rate consistent with the first data device. Data from the first data device is divided into blocks and is

A real time data transformation and transmission apparatus transforms data from a first data device and transfers the transformed data to a second data device which need not have a data transfer rate consistent with the first data device. Data from the first data device is divided into blocks and is compressed by a compression device and written into a buffer. A controller controls the buffer to transmit compressed data to the second data device as a function of the data receiving rate of the second data medium provided that the buffer contains a predetermined amount of data. While the buffer is transmitting data, the compressor is compressing further blocks of data which are being written to the buffer such that the predetermined amount of data is stored in the buffer upon completion of the buffer transmitting a block of data. This ensures that complete blocks of data are transmitted to the second data medium at the data receiving rate of the second data medium.

대표청구항 ▼

Real time data transformation and transmission apparatus for overlapping transformation of blocks of data provided from a first data medium which has a selected data transfer rate and transmission of the transformed blocks of data to a second data medium which has a selected data receiving rate, sai

Real time data transformation and transmission apparatus for overlapping transformation of blocks of data provided from a first data medium which has a selected data transfer rate and transmission of the transformed blocks of data to a second data medium which has a selected data receiving rate, said apparatus comprising: transformation means coupled to the first data medium for transforming blocks of data received from the first data medium into variable size blocks of transformed data and providing said transformed data of an irregular rate; buffer means coupled to the transformation means and to the second data medium for storing the transformed data and transmitting the transformed data to the second data medium; and control means coupled to the transformation means and to the buffer means for controlling the transformation means to provide transformed data to the buffer means as a function of the amount of data in the buffer means and controlling the buffer means to transmit the transformed data to the second data medium as a function of the data receiving rate of the seond data medium provided that the buffer means contains a predetermined amount of data sufficient to ensure that each block of transformed data is transmitted to the second data medium continuously at the data receiving rate of the second data medium.