JPS6465628A - Digital operation deciding circuit - Google Patents

Digital operation deciding circuit

Info

Publication number
JPS6465628A
JPS6465628A JP62223347A JP22334787A JPS6465628A JP S6465628 A JPS6465628 A JP S6465628A JP 62223347 A JP62223347 A JP 62223347A JP 22334787 A JP22334787 A JP 22334787A JP S6465628 A JPS6465628 A JP S6465628A
Authority
JP
Japan
Prior art keywords
data
alpha
bits
size
beta
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62223347A
Other languages
Japanese (ja)
Inventor
Toshihiko Kaneshige
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba AVE Co Ltd
Original Assignee
Toshiba Corp
Toshiba Audio Video Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Toshiba Audio Video Engineering Co Ltd filed Critical Toshiba Corp
Priority to JP62223347A priority Critical patent/JPS6465628A/en
Publication of JPS6465628A publication Critical patent/JPS6465628A/en
Pending legal-status Critical Current

Links

Landscapes

  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE:To allow a small sized circuit to execute excellent decision even when there are many bits in the data by providing the titled circuit with the 1st and 2nd deciding means and an arithmetic means for calculating an absolute value to decide a prescribed condition and to execute required decision. CONSTITUTION:A digital operation formula is substituted for ¦A - B¦<2N. Data alpha, beta of respective lower N bits in the data A, B are compared at their size by a size comparator 15. On the other hand, data (a), (b) of upper bits excluding the lower N bits in the data A, B are compared at their size by a size comparator 18. The data (b) are converted into a negative value, a - b is calculated by a full adder 21, and when the absolute value is '1', outputs an 'H' level signal. In the other case, an 'L' level signal is outputted. The level outputs of each decision result are supplied to an OR circuit 24 through AND circuits 16, 17 and 19, 20. The outputs goes to a 'H' level, only when a=b, ¦a-b¦, and alpha<beta, ¦a-b¦=1 and a<alpha, alpha>beta. Then, whether or not the formu la is satisfied, is decided.
JP62223347A 1987-09-07 1987-09-07 Digital operation deciding circuit Pending JPS6465628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62223347A JPS6465628A (en) 1987-09-07 1987-09-07 Digital operation deciding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62223347A JPS6465628A (en) 1987-09-07 1987-09-07 Digital operation deciding circuit

Publications (1)

Publication Number Publication Date
JPS6465628A true JPS6465628A (en) 1989-03-10

Family

ID=16796739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62223347A Pending JPS6465628A (en) 1987-09-07 1987-09-07 Digital operation deciding circuit

Country Status (1)

Country Link
JP (1) JPS6465628A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512075A (en) * 1993-04-05 1996-04-30 Nippondenso Co., Ltd. Folded filter element for filtering fluid
US5792229A (en) * 1994-07-07 1998-08-11 Nippondenso Co., Ltd. Filter and filtering apparatus
US7917342B2 (en) 2002-10-04 2011-03-29 Mitsubishi Heavy Industries, Ltd. Computer aided design system and computer aided design program using a geometric surface model

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512075A (en) * 1993-04-05 1996-04-30 Nippondenso Co., Ltd. Folded filter element for filtering fluid
US5792229A (en) * 1994-07-07 1998-08-11 Nippondenso Co., Ltd. Filter and filtering apparatus
US7917342B2 (en) 2002-10-04 2011-03-29 Mitsubishi Heavy Industries, Ltd. Computer aided design system and computer aided design program using a geometric surface model

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