CALCULATION DEVICE

• US 20150142136A1
• Filed: 11/10/2014
• Published: 05/21/2015
• Est. Priority Date: 11/15/2013
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Ueno, Akira, Chida, Kazue
• Granted Patent: US 9,798,305 B2
• Time in Patent Office: Days
• US Class Current: 700/19
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06F 17/10 Complex mathematical operations function generation by table look-up G06F1/03; evaluation of elementary functions by calculation G06F7/544
• CPC Class Codes: G06F 9/3001 Arithmetic instructions

Abstract

A calculation device includes a plurality of calculation processing units configured to perform different processes with each other, a plurality of calculators configured to perform a same calculation, and a control unit configured to control a number of the calculators to be operated during each of a plurality of divided periods based on a length of a predetermined processing period and a number of calculations to be performed, such that a number of data which is equal to a number of calculations is processed within a predetermined processing period, and that the number of the calculators to be operated during each of the plurality of divided periods is averaged, the divided periods being obtained by dividing up the predetermined processing period.

Claims

1. A calculation device comprising:

a plurality of calculation processing units configured to perform different processes with each other;

a plurality of calculators configured to perform a same calculation; and

a control unit configured to control a number of the calculators to be operated during each of a plurality of divided periods

based on

a length of a predetermined processing period and

a number of calculations to be performed,

such that a number of data which is equal to a number of calculations is processed within a predetermined processing period, and

that the number of the calculators to be operated during each of the plurality of divided periods is averaged,

the divided periods being obtained by dividing up the predetermined processing period.

2. The calculation device according to claim 1,

wherein the control unit includes a register in which the length of the processing period and the number of the calculations are set from outside of the calculation device.

3. The calculation device according to claim 1,

wherein the control unit controls the number of the calculators to be operated during each of the plurality of divided periods based on the length of the processing period and the number of the calculations determined based on valid data signals output from the plurality of calculation processing units.

4. The calculation device according to claim 3,

wherein the length of the processing period is a period of time determined from an interval between two valid states of the valid data signals output from the plurality of calculation processing units, and

the number of the calculations is a number determined from the number of valid states of the valid data signal.

5. The calculation device according to claim 3, further comprising a mediation unit configured to control transfer of data between the plurality of the calculation processing units and the plurality of calculators and determine the length of the processing period and the number of the calculations based on the valid data signals output from the plurality of calculation processing units.