NL129141C - - Google Patents
Info
- Publication number
- NL129141C NL129141C NL129141DA NL129141C NL 129141 C NL129141 C NL 129141C NL 129141D A NL129141D A NL 129141DA NL 129141 C NL129141 C NL 129141C
- Authority
- NL
- Netherlands
Links
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/02—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general by means of diodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US550144A US2885551A (en) | 1955-11-30 | 1955-11-30 | Variable voltage level discriminator varying with the input voltage level |
| US550024A US2944217A (en) | 1955-11-30 | 1955-11-30 | Signal translating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL129141C true NL129141C (en) |
Family
ID=27069317
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL212373D NL212373A (en) | 1955-11-30 | ||
| NL129141D NL129141C (en) | 1955-11-30 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL212373D NL212373A (en) | 1955-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| NL (2) | NL129141C (en) |
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0
- NL NL212373D patent/NL212373A/xx unknown
- NL NL129141D patent/NL129141C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| NL212373A (en) |