Patents by Inventor Carl S. den Brinker

Carl S. den Brinker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4385269
    Abstract: A battery charger is provided which supplies pulses of charging current to a battery and discharges the battery between each charging pulse. The change in the battery terminal voltage over a predetermined period during each charging pulse is measured, and the pulse charging is terminated when a parameter of the measured voltage change exhibits a predetermined characteristic. Pulse charging may be terminated as a result of the measured voltage change exceeding a predetermined threshold or as a result of the detection of a point of inflexion in the variation of measured voltage change with time.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: May 24, 1983
    Assignees: Redifon Telecommunications Limited, Thames Television Limited
    Inventors: John F. Aspinwall, Ronald A. Barrs, Carl S. den Brinker, John R. Emmett
  • Patent number: 4223275
    Abstract: A voltage current transactor including a pair of cross-coupled current generators fed with equal currents from a constant current source. The current generators comprise cascaded bipolar transistor current mirrors in which current magnification is achieved by use of emitter multiplication. The output current is controlled only by the input voltage. Both the input port and output port are isolated in terms of identification (return paths) and while the input port can act on the output port, the reverse is not true. The device functions as a mid-identified current source wherein the current outputs are in anti-phase but independent of each other. The overall transconductance of the circuit can be programmed over a wide range by means of a single external resistor.Typical applications of the transactor to provide linear amplification, differentiation, integration with integration constant and gyrator functions are described.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: September 16, 1980
    Assignee: Texas Instruments Incorporated
    Inventor: Carl S. den Brinker
  • Patent number: 4100530
    Abstract: An electronic control system suitable for monitoring operation of an automatic automotive gearbox and for verifying actuation thereof in a correct manner. The control system includes stages corresponding to different gear positions, the stages being switchable between set and reset conditions. A control unit is operable to set a particular stage only when the next adjacent stage already is in a set condition. Electrical signals indicating the existing gearbox position are compared with signals defining which stage of the control system is set and operation of the control unit is inhibited if the compared signals do not correspond.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: July 11, 1978
    Assignee: Texas Instruments Incorporated
    Inventors: Carl S. den Brinker, Keith David Nicholls