Resources Contact Us Home
Electronic circuit

Image Number 5 for United States Patent #7671680.

An electronic circuit includes an input terminal, a transimpedance amplifier connected to the input terminal and including an amplifier and a feedback resistor, a first time constant circuit smoothing an output from the transimpedance amplifier, a gain control circuit arranged between the input terminal and ground potential and controlling current flowing between the input terminal and the ground potential on the basis of the output from the first time constant circuit, and a safeguard circuit controlling the gain control circuit and blocking the current flowing between the input terminal and the ground potential, when a signal to be input into the input terminal is stopped.

  Recently Added Patents
Thin film switch and press key/keyboard using the same
PVD coated tool
Method and system for checking citations
Regulating a supply voltage provided to a load circuit
Cabinet door with tread pattern
Timing and cell specific system information handling for handover in evolved UTRA
Digital display devices and digital projectors with expanded color gamut
  Randomly Featured Patents
Shopping cart display system
Collared prosthetic device with centering fins
Device and assembly
2'-C-methyl-3'-O-L-valine ester ribofuranosyl cytidine for treatment of flaviviridae infections
Sheet deskewing method and apparatus
Detachable wear pad for the third rail shoe on an electric railway car
Backplane with associated handling means
Combined story media and puppet toy
Control of woody plants by the foliar application of triclopyr butoxyethyl ester compositions free of aromatic solvents
Noninvasive continuous blood pressure measuring apparatus and a method of noninvasively measuring continuous blood pressure