摘要:
An information reproducing apparatus for reproducing recorded data includes a buffer, a control device and a determining device. The buffer stores data blocks read out from a recording medium and includes first and second storage areas having respectively discontinuous storing and read addresses. The apparatus is controlled to execute in parallel a first process for storing the data blocks into the buffer and a second process for reading out the data blocks stored in the buffer to transfer the data blocks to a host apparatus. The determining device determines whether there are data in the first storage area to be transferred to the host apparatus by comparing a storing address in the buffer of the data which are being stored into the first storage area with a read address in the buffer of the data which are being read out from the first storage area. The first process is controlled so that a predetermined data block which has been read out from the recording medium is stored into the second storage area. When the predetermined data block is stored into the second storage area, the determining device does not compare the storing address in the buffer of the data which are being stored into the second storage area with the read address in the buffer of the data which are being read out from the buffer.
摘要:
A search engine has a plurality of comparators. Discriminants are set in the comparators for each search, and the comparators are selectively connected.
摘要:
A communication apparatus which transmits data to a transmission destination, and receives, from the transmission destination, an acknowledgement indicating that the data has been received stores, in a memory, first specific data for specifying a plurality of transmission data, and transmission time data indicating transmission times of the plurality of transmission data. Based on second specific data contained in the acknowledgement, the communication apparatus searches the memory for first specific data for specifying transmission data corresponding to the acknowledgement, and calculates a round trip time based on the transmission time of the transmission data specified by the found first specific data, and a reception time at which the acknowledgement is received.
摘要:
A communication apparatus has plural processors to perform pipeline processing on communication data. A first processor among the plural processors transfers information, used by a second processor to perform post-stage processing of the first processor, from a first memory to a second memory.
摘要:
A search engine has a plurality of comparators. Discriminants are set in the comparators for each search, and the comparators are selectively connected.
摘要:
A communication apparatus has plural processors to perform pipeline processing on communication data. A first processor among the plural processors transfers information, used by a second processor to perform post-stage processing of the first processor, from a first memory to a second memory.
摘要:
In a communication apparatus for communicating based on a communication protocol, context information relating to a connection of the communication protocol is held and managed. The timer used in the communication protocol is used for time-count process, a notification of timeout of the timer is given in advance, and when the notification of timeout is given in advance, an instruction for pre-load is given so that the context information is stored in the cache memory. Thereby, upon timeout of the timer, the context information is stored in the cache memory.
摘要:
An information processing system includes (i) a memory medium for storing a control program that includes a region for storing information indicative of its version and (ii) an apparatus for effecting at least one of recording of information on and reproduction of information from the memory medium. That apparatus includes (i) a rewritable memory for storing a control program for controlling that apparatus, the control program including a region for storing information indicative of its version, (ii) a comparing device for comparing the version of the control program stored in the rewritable memory with the version of the control program stored in the memory medium and (iii) a device for replacing a control program of an older version with a control program of a newer version, in conformity with the comparison.
摘要:
A communication apparatus which transmits data to a transmission destination, and receives, from the transmission destination, an acknowledgement indicating that the data has been received stores, in a memory, first specific data for specifying a plurality of transmission data, and transmission time data indicating transmission times of the plurality of transmission data. Based on second specific data contained in the acknowledgement, the communication apparatus searches the memory for first specific data for specifying transmission data corresponding to the acknowledgement, and calculates a round trip time based on the transmission time of the transmission data specified by the found first specific data, and a reception time at which the acknowledgement is received.
摘要:
There is an information searching apparatus comprising: a photo disc device in which a plurality of image files are stored; a selecting circuit to select and read out one or a plurality of image files from among the image files stored in the photo disc device in accordance with a predetermined condition; a second memory device such as a semiconductor memory or a photo magnetic disc device to store the one or a plurality of image files read out by the selecting circuit; and a controller to control the readout of the image files from the photo disc device in accordance with the memory capacity of the second memory device and with the information quantity of the image files selected by the selecting circuit. In this apparatus, the search and readout of the image files are controlled by different controllers, so that a desired image file can be obtained for a short time.