4 results about "Information feedback" patented technology

The invention discloses a nonvalatile memory system with variable error correcting capability, which comprises a system bus interface module, an RS encoder, an RS decoder, an NAND read-write time sequence generator and an error correcting capability configuration module. The error correcting capability configuration module carries out order input and error correcting information feedback with outside world through the bus interface module. The error correcting capability configuration module carries out error correcting capability configuration to the RS encoder and the RS decoder respectively in accordance with instructions and outputs feedback information obtained from the RS encoder and the RS decoder respectively through the bus interface module. The system takes both speed and error correcting capacity into consideration, thus realizing the error correcting capacity adjustment in various environments so as to obtain the best error correcting configuration.

The invention relates to the multimedia data communication technology field and provides a multimedia data safety monitoring device, a receiving terminal, a multimedia data authentication method and a system thereof. The authentication system comprises: a multimedia data safety monitoring device and a multimedia data receiving terminal, wherein the multimedia data safety monitoring device is used to acquire multimedia data, carry out safety authentication to the multimedia data and stores authentication result information in a safety checking code database; the multimedia data receiving terminal is used to receive the multimedia data, using a same method which the multimedia data safety monitoring device used to carry out the safety authentication to the multimedia data and feed back the safety authentication result information to the multimedia data safety monitoring device. The multimedia data safety monitoring device carries out comparison authentication to the received safety authentication result information and the corresponding safety authentication result information stored in the safety checking code database. If the two are matched, the authentication is passed and the multimedia data receiving terminal decodes and plays. A technical scheme is easy to be realized. Contents are safe and a definition is simple and strictness. Security is high. Implementation and management costs are low.