JPS5685930A - Pulse width discriminating circuit - Google Patents
Pulse width discriminating circuitInfo
- Publication number
- JPS5685930A JPS5685930A JP15501079A JP15501079A JPS5685930A JP S5685930 A JPS5685930 A JP S5685930A JP 15501079 A JP15501079 A JP 15501079A JP 15501079 A JP15501079 A JP 15501079A JP S5685930 A JPS5685930 A JP S5685930A
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- circuit
- pulse width
- delay time
- output
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
- G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
- G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)
Abstract
PURPOSE:To make it possible to easily integrate the circuit, by setting and resetting the FF by the respective even-and odd-ordered AND output signals of optional numbers of plural inverting circuits which have been cascaded. CONSTITUTION:The even output signals c, e, g, i, k of optional number of the inverting circuits N1-N16 whose delay time is equal are input to the NAND circuit 1, and the odd-ordered output signals b, d, f, h, j of optional numbers are input to the NAND circuit 2. The respective signals m, l of the circuits 1, 2 are made set and reset signals of the FF which is composed of the NAND circuits 3, 4, and the circuits 1-4 have an equal delay time. According to this constitution, a signal having pulse width which is larger than the delay time by the circuits N1-N16 is output as an output signal (n), as it is from the circuit 3 after said delay time, a signal having smaller pulse width than said signal is not output, and therefore, the pulse width can be discriminated. Since this circuit is constituted of a gate circuit, it is possible to integrate it.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15501079A JPS5685930A (en) | 1979-11-30 | 1979-11-30 | Pulse width discriminating circuit |
CA000365338A CA1159129A (en) | 1979-11-27 | 1980-11-24 | Asynchronous transmission system for binary-coded information |
US06/210,850 US4347617A (en) | 1979-11-27 | 1980-11-26 | Asynchronous transmission system for binary-coded information |
GB8037943A GB2064922B (en) | 1979-11-27 | 1980-11-26 | Asynchronous transmission system for binary-coded information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15501079A JPS5685930A (en) | 1979-11-30 | 1979-11-30 | Pulse width discriminating circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5685930A true JPS5685930A (en) | 1981-07-13 |
Family
ID=15596706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15501079A Pending JPS5685930A (en) | 1979-11-27 | 1979-11-30 | Pulse width discriminating circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5685930A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6299991A (en) * | 1985-10-25 | 1987-05-09 | Hitachi Ltd | Semiconductor storage device |
US5589784A (en) * | 1992-03-31 | 1996-12-31 | Texas Instruments Incorporated | Method and apparatus for detecting changes in a clock signal to static states |
JP2010076127A (en) * | 2008-09-24 | 2010-04-08 | Kawasaki Microelectronics Inc | Synchronizing signal detecting circuit and semiconductor integrated circuit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5136095A (en) * | 1974-09-20 | 1976-03-26 | Matsushita Electric Ind Co Ltd |
-
1979
- 1979-11-30 JP JP15501079A patent/JPS5685930A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5136095A (en) * | 1974-09-20 | 1976-03-26 | Matsushita Electric Ind Co Ltd |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6299991A (en) * | 1985-10-25 | 1987-05-09 | Hitachi Ltd | Semiconductor storage device |
US5589784A (en) * | 1992-03-31 | 1996-12-31 | Texas Instruments Incorporated | Method and apparatus for detecting changes in a clock signal to static states |
JP2010076127A (en) * | 2008-09-24 | 2010-04-08 | Kawasaki Microelectronics Inc | Synchronizing signal detecting circuit and semiconductor integrated circuit |
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