Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method for sorting processor chips based on a thermal design point. SOLUTION: Using this system and this method, for each processor chip, a high power workload is executed on the processor chip to determine a voltage regulator module (VRM) load curve. Thereafter, a thermal design point (TDP) workload is applied to the processor chip and the voltage is varied until performance of the processor chip falls on the VRM load curve. At this point, the power input to the processor chip is measured and used to carry out sorting/binning of the processor chip. The various workloads applied have a constant frequency. From this sorting of processor chips, high speed processors that require less voltage to achieve a desired frequency and low current processors that drain less current while running at a desired frequency can be identified. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce power supply voltage to be supplied to a microprocessor. SOLUTION: The present invention relates to a technology for supplying a power supply voltage to a microprocessor. Before normal arithmetic processing of the microprocessor, duty cycle correction process for adjusting the duty cycle of a clock signal inside the microprocessor is performed (S120-S140). In the duty cycle correction process for adjusting the duty cycle, the duty cycle of the clock signal is adjusted so as to minimize the power voltage at which the microprocessor is operable. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PCT No. PCT/EP93/03572 Sec. 371 Date Aug. 10, 1995 Sec. 102(e) Date Aug. 10, 1995 PCT Filed Dec. 15, 1993 PCT Pub. No. WO94/15290 PCT Pub. Date Jul. 7, 1994Discloses a device and a method for checking by means of a checker (100). the data incorporating check bits read into a memory stack. The device comprises a first counter (20), which is connected through logical gates (30a-d) with some of the memory input lines (25), and a second counter (80) between the checker (100) and the memory (50), which is connected through logical gates (70a-d) to the memory output lines (55) corresponding to the memory input lines (25) with the first (20) and the second (80). counters generating continuous binary values. The method comprising the following stages: combination of the data to be read in with a value generated by a first counter (20) in accordance with an exclusive-OR operation; reading the logically combined data into the memory (50); reading the logically combined data from the memory (50); combination of the logically combined data read out with a value generated by a second counter (80) in accordance with an exclusive-OR operation; checking the data read out for parity in a parity checker (100). The invention may be used in a buffer memory (50) between two asynchronously timed buses.