Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/14—Picture signal circuitry for video frequency region
  • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
  • H04N5/18—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit
  • H04N5/185—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level by means of "clamp" circuit operated by switching circuit for the black level
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
  • C25D11/005—Apparatus specially adapted for electrolytic conversion coating
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
  • C25D11/02—Anodisation
  • C25D11/024—Anodisation under pulsed or modulated current or potential
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
  • C25D11/02—Anodisation
  • C25D11/04—Anodisation of aluminium or alloys based thereon
• • C—CHEMISTRY; METALLURGY
  • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
  • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
  • C25D7/00—Electroplating characterised by the article coated
  • C25D7/02—Slide fasteners
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
  • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
  • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
  • H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
  • H03K4/26—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor
  • H03K4/28—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device
  • H03K4/32—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth current is produced through an inductor using a tube operating as a switching device combined with means for generating the driving pulses

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Signal Processing (AREA)
• Multimedia (AREA)
• Video Image Reproduction Devices For Color Tv Systems (AREA)
• Electroplating Methods And Accessories (AREA)
• Treatment Of Fiber Materials (AREA)
• Control Of Eletrric Generators (AREA)
• Details Of Television Scanning (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=27447349

Family Applications (1)

Country Status (7)

Families Citing this family (15)

Family Cites Families (10)

• 0
  • NL NL7016730.B patent/NL163107B/xx unknown
  • NL NL7005223.A patent/NL163612C/xx active
  • BE BE511193D patent/BE511193A/xx unknown
  • NL NLAANVRAGE7610728,A patent/NL169752B/xx unknown
  • NL NL88072D patent/NL88072C/xx active
• 1950
  • 1950-08-04 GB GB19580/50A patent/GB704146A/en not_active Expired
  • 1950-09-01 GB GB21602/50A patent/GB702742A/en not_active Expired
• 1951
  • 1951-05-21 GB GB11849/51A patent/GB770950A/en not_active Expired
  • 1951-08-04 CH CH294916D patent/CH294916A/fr unknown
  • 1951-08-04 FR FR1040340D patent/FR1040340A/fr not_active Expired
  • 1951-08-20 US US242731A patent/US2662198A/en not_active Expired - Lifetime
  • 1951-08-22 DE DEM10722A patent/DE865494C/de not_active Expired
  • 1951-08-29 CH CH298291D patent/CH298291A/fr unknown
• 1952
  • 1952-05-06 FR FR1060041D patent/FR1060041A/fr not_active Expired
  • 1952-05-09 DE DEB20358A patent/DE1092265B/de active Pending
  • 1952-05-13 CH CH311810D patent/CH311810A/fr unknown
  • 1952-05-19 US US288642A patent/US2764542A/en not_active Expired - Lifetime

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