GB1063992A - Improvements relating to comparator circuit arrangements - Google Patents
Improvements relating to comparator circuit arrangementsInfo
- Publication number
- GB1063992A GB1063992A GB1653463A GB1653463A GB1063992A GB 1063992 A GB1063992 A GB 1063992A GB 1653463 A GB1653463 A GB 1653463A GB 1653463 A GB1653463 A GB 1653463A GB 1063992 A GB1063992 A GB 1063992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- com
- circuit
- gates
- bias
- stable
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Manipulation Of Pulses (AREA)
Abstract
1,063,992. Automatic exchange equipment. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 24, 1964 [April 26, 1963], No. 16534/63. Heading H4K. A circuit for determining whether a bi-stable circuit BS1 is set in the same condition as a bi-stable circuit BS2, which circuit is employed in an exchange system to compare the identity of incoming junctions with the identity of junctions stored in a register, comprises gates COM A and COM B connected such that if the bi-stable circuits are in one state they extend voltage to COM A and if in the other state they extend voltage to COM B, the gates being pulseplus-bias gates biased by the outputs of BS2 and pulsed when the outputs of BS1 are connected up by switches S1, S2. If the bi-stables are in the condition with their lefthand sections A active output is produced from COM A and if the right-hand sections B are active output is produced from COM B. In either event the output is taken to a common lead Pay. The pulse-plus-bias gate COM A is shown in Fig. 2, a positive bias on Ol1<SP>1</SP> from BS2 raising the junction x to a small negative value so that a pulse on Ol1 from BS1 causes rectifier D1 to conduct. A capacitor C1 decouples BS1 from BS2 while a rectifier D2 prevents the capacitor discharging back into BS2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1653463A GB1063992A (en) | 1963-04-26 | 1963-04-26 | Improvements relating to comparator circuit arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1653463A GB1063992A (en) | 1963-04-26 | 1963-04-26 | Improvements relating to comparator circuit arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1063992A true GB1063992A (en) | 1967-04-05 |
Family
ID=10079057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1653463A Expired GB1063992A (en) | 1963-04-26 | 1963-04-26 | Improvements relating to comparator circuit arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1063992A (en) |
-
1963
- 1963-04-26 GB GB1653463A patent/GB1063992A/en not_active Expired
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