GB916259A - Deviation counter - Google Patents
Deviation counterInfo
- Publication number
- GB916259A GB916259A GB2177461A GB2177461A GB916259A GB 916259 A GB916259 A GB 916259A GB 2177461 A GB2177461 A GB 2177461A GB 2177461 A GB2177461 A GB 2177461A GB 916259 A GB916259 A GB 916259A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counter
- control circuit
- frequency
- time
- reverse
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
- H03K23/002—Pulse counters comprising counting chains; Frequency dividers comprising counting chains using semiconductor devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/62—Performing operations exclusively by counting total number of pulses ; Multiplication, division or derived operations using combined denominational and incremental processing by counters, i.e. without column shift
Abstract
916,259. Electric selective signalling systems. BECKMAN INSTRUMENTS Inc. June 16, 1961 [Sept. 2, 1960], No. 21774/61. Class 40 (1). [Also in Group XIX] Apparatus for measuring deviation from normal of a frequency or time-duration between events comprises a counter which can be set to a predetermined number and is then operated in reverse, the attainment of zero changing the counter to forward operation. To measure frequencydeviation switches 12 are set to upper position and the normal frequency N 1 is set up over selectors 31 on counter 30. The test frequency is applied through input 10 to signal gate 17 which is opened through gate control circuit 18 and digital divider 19 by clock pulses from 16 for a predetermined time. During this time the test frequency runs counter 30 in reverse. If a number remains in the counter at the end of the operation it indicates by how much the frequency falls short of the norm. On the other hand if the counter 30 reaches zero a control circuit 32 operates to cause the counter to operate forwardly. The final registration then indicates excess. The sign of the final registration is indicated by the condition of control circuit 32. To measure deviation from a standard time for a number of input pulses, the standard time in terms of clock pulses is set up at 31 and the switches 12 are reversed. Selectors 31 are in the form of a 4-back switch for each denomination, Fig. 4, whereby a combination of leads 131-138 is marked to set up a binary-decimal cascade counter, Fig. 5. According to whether control circuit marks lead 34 or 35 so one or the other side of each stage is connected to the input of the next to provide forward or reverse counting. Transfer and resetting is of known type.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5383760A | 1960-09-02 | 1960-09-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB916259A true GB916259A (en) | 1963-01-23 |
Family
ID=21986887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2177461A Expired GB916259A (en) | 1960-09-02 | 1961-06-16 | Deviation counter |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB916259A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0165046A2 (en) * | 1984-06-12 | 1985-12-18 | Toshiba Kikai Kabushiki Kaisha | Pulse generator for generating a train of pulses representing the displacement of a body |
-
1961
- 1961-06-16 GB GB2177461A patent/GB916259A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0165046A2 (en) * | 1984-06-12 | 1985-12-18 | Toshiba Kikai Kabushiki Kaisha | Pulse generator for generating a train of pulses representing the displacement of a body |
EP0165046A3 (en) * | 1984-06-12 | 1988-01-20 | Toshiba Kikai Kabushiki Kaisha | Pulse generator |
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