Fuzzy logic semifinished integrated circuit

• US 4,860,243 A
• Filed: 04/23/1987
• Issued: 08/22/1989
• Est. Priority Date: 03/23/1984
• Status: Expired due to Fees

• Current Assignee: Omron Tateisi Electronics Co. (Omron Corporation)
• Original Assignee: Omron Tateisi Electronics Co. (Omron Corporation)
• Inventors: Yamakawa, Takeshi, Shirai, Yuji, Ueno, Fumio
• Primary Examiner(s): Goldberg, E. A.
• Assistant Examiner(s): REINHART, MARK J
• Application Number:
  US07/041,696
• Time in Patent Office: 852 Days
• Field of Search: 364/807, 364/801, 364/800, 364/600, 364/601, 364/602, 364/604, 307/494, 307/201, 307/296 R, 361/414, 361/412, 361/396
• US Class Current: 708/801
• CPC Class Codes: G06G 7/14 for addition or subtraction of vector quantities G06G7/22 ; computing the average by addition; differential amplifiers H03F3/45
• CPC Class Codes: G06N 7/043 Analogue or partially analogue implementation
• CPC Class Codes: H01L 27/0629 in combination with diodes, or resistors, or capacitors
• CPC Class Codes: H01L 27/11807 CMOS gate arrays
• CPC Class Codes: H03K 19/00 Logic circuits, i.e. having at least two inputs acting on one output circuits for computer systems using fuzzy logic G06N7/02; Inverting circuits
• CPC Class Codes: H03K 19/094 using field-effect transistors
• CPC Class Codes: Y10S 706/90 Fuzzy logic

Abstract

A fuzzy logic circuit comprising a current mirror comprising an FET, a first input current source connected to the input side of the current mirror, a second input current source, a wired OR connected at its input side to the output side of the current mirror and to the second input current source, and an output terminal connected to the output side of the wired OR.

Claims

1. A fuzzy logic semifinished integrated circuit comprising:

a base plate,

a multiplicity of identical basic circuit elements fabricated on the base plate for constructing desired fuzzy logic circuits operable in a current mode in selected combinations of the basic circuitelements, each of the basic circuit elements comprising a non-wired current mirror which is connectable to construct a bounded-difference circuit with use of connection patterns, each of said fuzzy logic circuits comprising at least one said bonded-difference circuit, and

an insulating film formed over the entire surface of the base plate for insulating said basic circuit elements from said connection patterns except for conducting positions of said basic circuit elements.

2. A fuzzy logic circuit as in claim 1, wherein said insulating film is a protective insulating film.

3. A fuzzy logic circuit as in claim 1, wherein said insulating film is formed with contact holes at least at said conducting positions, and a thin conductor film for realizing said connection patterns is formed over the insulating film.

4. A fuzzy logic circuit as in claim 1, wherein the basic circuit elements each comprise a said current mirror and a non-wired diode, said nsulating film is formed with contact holes at least at said conducting positions, and a thin conductor film for realizing said connection patterns is formed over the insulating film.

5. A fuzzy logic circuit as in claim 1, wherein the basic circuit elements each comprise a said current mirror and a non-wired diode, from said insulating film is a protective insulating film.

6. A fuzzy logic semifinished integrated circuit comprising:

a base plate,

a non-wired current distributor circuit and a non-wired multi-output circuit fabricated on the base plate,

said non-wired multi-output circuit having at least three drain regions, one of which is connectable to a common gate, and a common source region, wherein each of said drain regions feeds a current of the same value as that of an input current fed to said source region, and

an insulating film formed over the entire surface of the base plate.

7. A fuzzy logic circuit as in claim 6, wherein said insulating film is a protective insulating film.

8. A fuzzy logic circuit as in claim 6, wherein said insulating film is formed with contact holes at predetermined positions, and a thin conductor film is formed over the insulating film, wherein the current distributor circuit and multi-output circuit are operable in a current mode when they are connected by the conductor film.

9. A fuzzy logic circuit as in claim 6, further comprising a current distributor non-wired circuit comprising said non-wired multi-output circuit and a non-wired current mirror.