Abstract: In a normal operation state, a connection management section writes data transmitted from a first processing section to a data temporary storage section and reads data to be received by a second processing section from the data temporary storage section. Upon receiving control signals which instruct a change of the subject of processing, the first processing section and the second processing section output a transmitting-end clear request and a receiving-end clear request, respectively. The connection management section reads data from the empty data storage section after a transmitting-end clear request is received and until a receiving-end clear request is received, and writes data to the empty data storage section after a receiving-end clear request is received and until a transmitting-end clear request is received.

Abstract: In a normal operation state, a connection management section writes data transmitted from a first processing section to a data temporary storage section and reads data to be received by a second processing section from the data temporary storage section. Upon receiving control signals which instruct a change of the subject of processing, the first processing section and the second processing section output a transmitting-end clear request and a receiving-end clear request, respectively. The connection management section reads data from the empty data storage section after a transmitting-end clear request is received and until a receiving-end clear request is received, and writes data to the empty data storage section after a receiving-end clear request is received and until a transmitting-end clear request is received.

Abstract: Conventionally, when a multimedia data processing section that has become a component is taken out of a database, it is necessary that the multimedia data processing section is taken out of the database once and a condition determination of this multimedia data processing section and other multimedia data processing sections is performed, and the problem is that a search for a multimedia data processing section is thus time consuming. According to the present invention, not only the body of a multimedia data processing section (130), but also a function entry (120) of a function (140) that performs a condition determination of the multimedia data processing section (130) is registered with a database (101), so that when a search for the multimedia data processing section (130) is performed, the function entry alone is taken out first and a condition determination is performed, and, only when it suits the purpose, the body of the multimedia data processing section (130) is taken out.

Abstract: It is an object of the invention to time independent common times for a plurality of processing system groups, respectively. It is another object of the invention to take a synchronization in the vicinity of the start of reproduction also when a difference is made over a time taken to prepare for the processing of each processing system. Counting unit (12) manages the common times of a plurality of processing system groups (16) and (17) to time a common time for each of the processing system groups, and time supply unit (13) supplies the common time obtained by the counting of the counting unit (12) to each of processing systems (161), (162), (171) and (172). Moreover, counting control unit (14) controls to start and stop the counting based on notices given from the processing systems (161), (162), (171) and (172) of the processing system groups (16) and (17).

Abstract: In a data transmission/reception apparatus 11, a data transfer is performed by a pipeline technique between N processing sections Pd—1 to Pd_N. The data transmission/reception apparatus 11 includes (N?1) or more intermediary sections 21, each having a transmission/reception control section 23 for controlling data transmission/reception and a buffer 27. The intermediary sections 21 interconnect adjoining first and second data processing sections Pd—1 and Pd—2 to allow data obtained through the data process performed by the first data processing section Pd—1 to be transmitted to the second data processing section. A transmission API 35a in the first data processing section Pd—1 transmits data to the second data processing section Pd—2. A reception API 37b in the second data processing section Pd—2 receives the data transmitted from the second data processing section Pd—2.

Abstract: Conventionally, when a multimedia data processing section that has become a component is taken out of a database, it is necessary that the multimedia data processing section is taken out of the database once and a condition determination of this multimedia data processing section and other multimedia data processing sections is performed, and the problem is that a search for a multimedia data processing section is thus time consuming. According to the present invention, not only the body of a multimedia data processing section (130), but also a function entry (120) of a function (140) that performs a condition determination of the multimedia data processing section (130) is registered with a database (101), so that when a search for the multimedia data processing section (130) is performed, the function entry alone is taken out first and a condition determination is performed, and, only when it suits the purpose, the body of the multimedia data processing section (130) is taken out.

Abstract: In a normal operation state, a connection management section 21 writes data transmitted from a first processing section 13 to a data temporary storage section 22, and reads data to be received by the second processing section 14 from the data temporary storage section 22. Upon receiving control signals 31 and 32 which instruct a change of the subject of processing, the first processing section 13 and the second processing section 14 output a transmitting-end clear request 41 and a receiving-end clear request 42, respectively. The connection management section 21 reads data from the empty data storage section 23 after a transmitting-end clear request 41 is received and until a receiving-end clear request 42 is received, and writes data to the empty data storage section 23 after a receiving-end clear request 42 is received and until a transmitting-end clear request 41 is received.