Abstract: A system and method of operation information collection for CD-ROM drives. The system includes a CD-ROM drive system, a reception device and a computer host. The CD-ROM drive system outputs operation information to the reception device through a serial communication interface according to a start transmission signal. The reception device stores the operation information in storage, and transmits the operation information to the computer host in real time, or selectivity, transmits all received operation information to the computer host at a time according to a trigger, such that he computer host can analyze the operation information and perform related operations.

Abstract: A sink apparatus receives stream data outputted from a source apparatus connected to a predetermined network. When the source apparatus or an other apparatus connected to the network transmits a command to configure a data input section of the sink apparatus to input data outputted from the source apparatus, data are prepared to indicate that a configuration of the data input section is at least temporarily disabled as a response from the sink apparatus. When the apparatus that transmitted the command receives the data indicating that the configuration is at least temporarily disabled corresponding processing may be executed. When stream data are transmitted through a network it can be easily determined by an other apparatus on the network whether the sink apparatus is ready to input data.

Abstract: A semiconductor memory device comprises: a write data controller for receiving predetermined bits of data inputted through data input/output pins to generate plural bits of data, and a read data controller for serially converting the plural bits of data to generate serially converted data through one of the data input/output pins during a test operation; and the write data controller for receiving plural bits of data inputted through the input/output pins to generate the plural bits of data, and the read data controller for receiving the plural bits of data to generate the plural bits of data through the data input/output pins during a regular operation, wherein the number of the plural bits is N times the number of the predetermined bits. N being a natural number.