GB1409237A - Pseudorandom signal generators - Google Patents
Pseudorandom signal generatorsInfo
- Publication number
- GB1409237A GB1409237A GB2742471A GB2742471A GB1409237A GB 1409237 A GB1409237 A GB 1409237A GB 2742471 A GB2742471 A GB 2742471A GB 2742471 A GB2742471 A GB 2742471A GB 1409237 A GB1409237 A GB 1409237A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- register
- outputs
- sequence
- registers
- 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
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/84—Generating pulses having a predetermined statistical distribution of a parameter, e.g. random pulse generators
Landscapes
- Tests Of Electronic Circuits (AREA)
Abstract
1409237 Pseudo random binary sequence generators POST OFFICE 8 Sept 1972 [11 June 1971] 27424/71 Heading G4D A pseudo random sequence generator employs a plurality of cross coupled shift registers instead of a single recirculating register to increase its operating speed. As shown a generator providing a sequence of 2<SP>10</SP>-1 states employs two five stage registers 1a, 1b whose inputs 3a, 3b are supplied by EX-OR gates 2a, 2b. Gate 2a operates on the outputs of stage 5 of the first register and stage 3 of the second while gate 2b operates on the outputs of stage 5 of the second and stage 4 of the first register. The outputs of stage 5 of each register are combined in a switching circuit 4 operated at twice the clocking frequency of the shift registers with appropriate phasing. This generator provides the same length sequence as a conventional arrangement (Fig. I, not shown) using a 10-stage register but in a shorter time. More than two registers may be used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2742471A GB1409237A (en) | 1971-06-11 | 1971-06-11 | Pseudorandom signal generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2742471A GB1409237A (en) | 1971-06-11 | 1971-06-11 | Pseudorandom signal generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1409237A true GB1409237A (en) | 1975-10-08 |
Family
ID=10259359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2742471A Expired GB1409237A (en) | 1971-06-11 | 1971-06-11 | Pseudorandom signal generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1409237A (en) |
-
1971
- 1971-06-11 GB GB2742471A patent/GB1409237A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |