Abstract:
PROBLEM TO BE SOLVED: To provide an information processing unit and a method therefor, a server unit and a method therefor, and a unit mountable program. SOLUTION: The information processing unit uses a conformity value with signatures that is inherent to a software configuration and assures conformity in the initial code of a server connected to a network. The server unit generates keys for certifying the server unit (S810, S820, S830). One of the keys is certified by a third party and generates a handwoven, digital signature (S840). The digital signature is added to a conformity value, and the conformity value having signatures is communicated to the information processing unit, thus enabling the information processing unit to receive safe service via a network (S850, S860). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To solve the problems of fractionization of the computer system and memory bandwidth by an improved method, by connecting a memory chip, which has a bus interface built in a memory chip to an existing connection point of the computer system. SOLUTION: Such a memory 63 is necessary that includes main constituent elements to sufficient density for a main memory and a frame buffer and has a bus interface(I/F) 631, an on-chip data centralized computing function 623, and an optional RAM digital-to-analog converting(DAC) function 633 integrated. For the memory 63, architectures are arranged so as to shorten a wait time and improve data bandwidth. The data centralized computing function 632 functions for motion compensation, etc., in bit block transfer, rendering, z- comparison, alpha blending, MPEG(motion picture expert group) encoding for efficient image hierarchical constitution.
Abstract:
PROBLEM TO BE SOLVED: To prevent a data storage system from being complicated by transferring fast the data via data buses and also facilitating the control of the timing of the system. SOLUTION: The mutual synchronization of accesses is secured among storage means 13 to 17 which store the data. For this purpose, the data buses 11 and 12 are prepared to transfer the data together with an input/output means 21 which transfers the plural data series to the buses 11 and 12 with interleave, and a latch means 23 which is provided at plural stages and in series between the means 13 to 17 and the buses 11 and 12 and hold the data respectively.
Abstract:
PURPOSE: To facilitate transfer operation and restore data efficiently at a high speed in the case of fault occurrence by providing plural storage means, a data bus, and a selecting means having a function for parity arithmetic operation. CONSTITUTION: Two channels of 4-channel crossbar switches 11a and 11b having an exclusive OR operation function are connected to data buses DDO and DD1 as common buses. Other two channels of the crossbar switch 11a as the selecting means are connected to drives HDDO and HDD1. Other two channels of the crossbar switch 11b are connected to drives HDD2 and HDD3. Further, the crossbar switches 11a and 11b are controlled with an address signal and a control signal outputted from a data bus controller 13, and connections in optional combinations of drives and data buses are enabled. Thus, the selecting means itself is provided with the function for parity arithmetic operation.