Patents Assigned to Pelco
  • Patent number: 7218356
    Abstract: A synchronization signal generating apparatus and method in which an input circuit is inductively coupled to an alternating current signal line. The input circuit generates a rectified signal. A switch has a switch input and a switch output in which the switch input is electrically connected to the input circuit and is enabled when the voltage of the rectified signal is greater than a predetermined voltage and is disabled when the rectified signal voltage is less than the predetermined voltage. A pulse generating circuit has a pulse generating circuit input and a pulse generating circuit output. The pulse generating circuit input is electrically connected to the switch output. The pulse generating circuit generates a pulse each time the switch is enabled. The synchronization signal generating apparatus is used in a synchronized television display system to signal a video switch to switch the video signal generated by a camera to a monitor based on the occurrence of the synchronization signal.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: May 15, 2007
    Assignee: Pelco
    Inventor: David Rowe
  • Patent number: 7161615
    Abstract: A system and method is provided for processing video signals, tracking objects in view, and blanking fields of view in video surveillance systems. The system includes a camera having two rotational degrees of freedom, a display, and a combination of switches for routing the video signal. The displayed video signal is divided into an array of cells which may be individually masked, blanked, or blurred. The camera microcontroller captures and stores objects in view, and tracks such objects as the camera zooms, pans and tilts in spherical coordinates. Objects in view may be tracked and blanked by obscuring an agglomeration of the cells in response to a masking signal generated by the microcontroller.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: January 9, 2007
    Assignee: Pelco
    Inventors: John D. Pretzer, Robert D. Sexton, Reford R. Still, John C. Ellenberger
  • Patent number: 7136109
    Abstract: A pixel clock generating circuit is provided in which a digital circuit generates a first signal corresponding to the relative frequency of the pixel clock as compared with a predetermined desired pixel clock frequency. An analog circuit is electrically coupled to the digital circuit in which the analog circuit has a reverse biased variable capacitance device, an integrator and a comparator circuit. The reverse biased variable capacitance device has an anode and a cathode. The integrator has an input coupled to the digital circuit and an output coupled to the cathode of the reverse biased variable capacitor. The integrator is arranged to integrate the first signal received from the digital circuit and produce an output voltage across the reverse biased variable capacitance device such that the output voltage causes the capacitance of the reverse biased capacitor to change if the pixel clock is not operating at the predetermined desired pixel clock frequency.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: November 14, 2006
    Assignee: Pelco
    Inventors: Mohammad Alkhalili, David Rowe
  • Patent number: 7136513
    Abstract: This is a security and identification system designed to obtain improved images for use by real-time facial recognition and identification systems for screening individuals passing through secure entry or checkpoints such as airport passenger terminals, government offices, and other secure locations. The system detects the presence of a subject at the checkpoint, interactively instructs the subject to stop and move into position for proper identification and recognition, analyzes the facial features of the subject as (s)he passes through the checkpoint, and compares the features of the subject with those in a database. The system then generates different signals depending upon whether or not the subject is recognized. In one aspect of the invention, different methods and apparatus are provided for compensating for low ambient light so as to improve the quality of the facial image of the subject that is obtained.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: November 14, 2006
    Assignee: Pelco
    Inventors: Glenn Waehner, Erik Henry Tews, David L. A. Toste, Shane Compton, Joshua Cockrum, Sam Grigorian, Matthew Larson, John Pretzer, Joshua Houser, James Arbuckle, William S. Arbuckle, David McDonald
  • Patent number: 7064778
    Abstract: A technique, specifically a method and apparatus that implements the method, that allows a memory to be located remotely from a video source. Specifically, the method provides a write control signal between a video source and a remote memory that allows the remote memory to provide a video image during slow-shutter operation of the camera.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: June 20, 2006
    Assignee: Pelco Incorporated
    Inventor: Glenn C. Waehner
  • Patent number: 6987460
    Abstract: Disclosed is an orientation device that may be deployed in a mechanical assembly such as a surveillance camera or enclosure to positively determine the physical orientation and/or attitude (tilt), or any change in such physical orientation and/or attitude, of either the camera or the enclosure, and report that information electronically. The invention includes a sensor that is triggered by the movement of a weighted flag along a shaft caused by gravity or gravity in conjunction with the operation of a spring. As the invention is rotated through 360°, the force of gravity and force of the spring are exerted on the weighted flag, causing it to move along the shaft as the assembly is rotated. Each movement by the flag is detected by the sensor which sends an electronic signal indicating that a predetermined point has been reached. Multiple assemblies may be used, offset from each other, to provide additional and more precise position information.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 17, 2006
    Assignee: Pelco
    Inventors: Erik H. Tews, Alex Pokrovsky, Thomas C. Lyon
  • Patent number: 6952237
    Abstract: Disclosed is a method and apparatus for transmission of audio signals over a dedicated video transmission line in which the analog audio signal is inserted into and becomes a part of the video signal. Samples of the audio signal are inserted into the active video line, either at the beginnings or endings, or both, of each active video line scan signal. A defined amount of the active video interval is reserved from the active video line, and is replaced with samples of the analog audio signal. An analog switch in the modulator of the invention toggles to pick up the samples of audio and place them at the designated location (either at the beginnings or at the ends) of each active video line scan signal. A corresponding switch in the demodulator of the invention toggles to retrieve the audio samples from the active video line scans for output to the user. Stereo and/or bi-directional audio signals can be transmitted by insertion into both the beginnings and the endings of the active video line scan signals.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: October 4, 2005
    Assignee: Pelco
    Inventor: Samuel N. Grigorian
  • Patent number: 6901206
    Abstract: A method for storing video data files upon an array of multiple storage devices on a frame-by-frame basis, with the larger video frames placed upon devices having more free storage capacity, so as to preserve the video data stream continuity, optimize the capacity of the storage devices within the array, minimize or negate the need for any redundant storage, and at the same time, provide a means for easily expanding the overall storage capacity of the array.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: May 31, 2005
    Assignee: Pelco
    Inventor: Daniel R. DaSilva
  • Patent number: 6896423
    Abstract: A dual-purpose mounting structure and enclosure for a surface mounted surveillance camera system used alternatively to mount a camera system including back box directly onto a surface, or to mount the camera system such that the back box is recessed behind the surface. The enclosure and mount includes a back box having a flush flange assembly and a detachable surface mountable adaptor. For a surface mount, the adaptor is attached directly to the flush flange for mounting the enclosure onto a planar surface such as below a ceiling line. For a recessed mount, an opening is provided in the planar surface, the adaptor is inverted and placed around this opening on the opposite side of the planar surface, the back box is inserted through the opening and into the adaptor, and the adaptor is attached to the back box assembly.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: May 24, 2005
    Assignee: Pelco
    Inventors: James F. Arbuckle, Alexey Pokrovsky
  • Patent number: D506758
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: June 28, 2005
    Assignee: Pelco
    Inventors: Richard Todd Boswell, Greg Max Millar, Brian Rudolf Grziwok
  • Patent number: D515409
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 21, 2006
    Assignee: Pelco
    Inventors: Gregory Sorrentino, Matthew Evans
  • Patent number: D515580
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: February 21, 2006
    Assignee: Pelco
    Inventors: Richard Todd Boswell, Greg Max Millar, Bryan Rudolf Grziwok
  • Patent number: D516073
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: February 28, 2006
    Assignee: Pelco
    Inventors: Richard Todd Boswell, Greg Max Millar, Brian Rudolf Grziwok
  • Patent number: D525262
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: July 18, 2006
    Assignee: Pelco
    Inventors: Richard Todd Boswell, Greg Max Millar, Brian Rudolf Grziwok
  • Patent number: D527390
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: August 29, 2006
    Assignee: Pelco
    Inventors: Greg Max Millar, Raul Cortes, Richard Todd Boswell
  • Patent number: D530704
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: October 24, 2006
    Assignee: Pelco
    Inventor: Raul Cortes
  • Patent number: D532379
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: November 21, 2006
    Assignee: PELCO
    Inventors: Gregory Sorrentino, Matthew Evans
  • Patent number: D536674
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: February 13, 2007
    Assignee: Pelco
    Inventors: Greg Max Millar, Raul Cortes, Richard Todd Boswell
  • Patent number: D536675
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: February 13, 2007
    Assignee: Pelco
    Inventors: Greg Max Millar, Raul Cortes, Richard Todd Boswell
  • Patent number: D541326
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: April 24, 2007
    Assignee: Pelco
    Inventors: Jay Ford, Mike Higgins, Greg Giroux, Paul Jessen, Joshua Houser, David L. A. Toste