JPS56145458A - Correlator - Google Patents
CorrelatorInfo
- Publication number
- JPS56145458A JPS56145458A JP4935180A JP4935180A JPS56145458A JP S56145458 A JPS56145458 A JP S56145458A JP 4935180 A JP4935180 A JP 4935180A JP 4935180 A JP4935180 A JP 4935180A JP S56145458 A JPS56145458 A JP S56145458A
- Authority
- JP
- Japan
- Prior art keywords
- correlator
- adder
- full
- output
- circuit
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Complex Calculations (AREA)
- Picture Signal Circuits (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
PURPOSE:To miniaturize a correlator and to facilitate its integration by simplifying the constitution of the logic circuit of the correlator, by doubling the write time when the digital value of a reference signal is written in a waveform integrating memory. CONSTITUTION:A correlator used for the ghost eliminator of a TV receiver is provided with waveform integrating memories 21 and 22 having a capacity of nxm/2 bits (where n is the number of bits in the amplitude direction when a reference signal is digitized and m is the number of sections of the reference signal in the time axis direction). In memory 21, digital values D0...Dm-2 of even-numbered sections are stored and in memory 22, digital values D1...Dm-1 of odd-numbered sections are stored. Outputs of the memories 21 and 22 are supplied to inclusive OR circuit groups 23 and 24, whose outputs are added by full-adder 25. The output of full-adder 25 is supplied to full-adder 26, which every time the output is sent out of full-adder 25, performs integral addition to the output of latch circuit 27. To circuit groups 23 and 24, the output of differential arithmetic control circuit 28 is inputted to simplify the logic circuit of the correlator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55049351A JPS6042515B2 (en) | 1980-04-15 | 1980-04-15 | correlator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55049351A JPS6042515B2 (en) | 1980-04-15 | 1980-04-15 | correlator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56145458A true JPS56145458A (en) | 1981-11-12 |
| JPS6042515B2 JPS6042515B2 (en) | 1985-09-24 |
Family
ID=12828588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55049351A Expired JPS6042515B2 (en) | 1980-04-15 | 1980-04-15 | correlator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6042515B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0685224U (en) * | 1991-04-19 | 1994-12-06 | 天龍化学工業株式会社 | Wide-mouth container lid device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63182823U (en) * | 1987-05-15 | 1988-11-25 |
-
1980
- 1980-04-15 JP JP55049351A patent/JPS6042515B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0685224U (en) * | 1991-04-19 | 1994-12-06 | 天龍化学工業株式会社 | Wide-mouth container lid device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6042515B2 (en) | 1985-09-24 |
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