Classifications

• • 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
  • H03K4/88—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements electrochemical cells or galvano-magnetic or photo-electric elements
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
  • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
  • G01V1/24—Recording seismic data
  • G01V1/245—Amplitude control for seismic recording
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
  • G05B19/00—Programme-control systems
  • G05B19/02—Programme-control systems electric
  • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
  • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
  • G05B19/124—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using tapes, cards or discs with optically sensed marks or codes
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
  • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
  • G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K11/00—Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
  • G05B2219/00—Program-control systems
  • G05B2219/20—Pc systems
  • G05B2219/23—Pc programming
  • G05B2219/23201—Value is analog signal

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Remote Sensing (AREA)
• Life Sciences & Earth Sciences (AREA)
• Computer Hardware Design (AREA)
• Chemical & Material Sciences (AREA)
• Geology (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geophysics (AREA)
• Artificial Intelligence (AREA)
• Acoustics & Sound (AREA)
• Computer Vision & Pattern Recognition (AREA)
• Automation & Control Theory (AREA)
• Environmental & Geological Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• Mathematical Physics (AREA)
• Nonlinear Science (AREA)
• Optics & Photonics (AREA)
• Control Of High-Frequency Heating Circuits (AREA)
• Apparatus For Radiation Diagnosis (AREA)
• Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
• Laser Beam Printer (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11239810

Family Applications (1)

Country Status (8)

Families Citing this family (7)

Family Cites Families (11)

• 0
  • NL NL201427D patent/NL201427A/xx unknown
  • BE BE542299D patent/BE542299A/xx unknown
  • IT IT523664D patent/IT523664A/it unknown
  • NL NL280102D patent/NL280102A/xx unknown
• 1955
  • 1955-02-11 US US487627A patent/US2985872A/en not_active Expired - Lifetime
  • 1955-02-11 GB GB4139/55A patent/GB805093A/en not_active Expired
  • 1955-02-19 AT AT99555A patent/AT207893B/de active
  • 1955-10-20 CH CH346605D patent/CH346605A/it unknown
  • 1955-10-24 FR FR1134946D patent/FR1134946A/fr not_active Expired

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