Patents Assigned to Valentine Research, Inc.
  • Patent number: 10261171
    Abstract: A device includes a radar signal detector that can determine a signal strength of a police radar signal and a direction of a source of the police radar signal. Additionally, the device includes a display in communication with the radar signal detector that provides a single display region having a visual appearance which varies based on both the direction and on the signal strength.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: April 16, 2019
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Gary E. Carrelli, Richard L. Dickerson, Michael Negussu, Stephen R. Scholl
  • Patent number: 10261170
    Abstract: An apparatus for a vehicle includes a radar detector configured to detect a police radar signal and a receiver configured to receive information about an image of an environment of the vehicle. A controller in communication with the radar detector and the receiver is configured to change at least one operating characteristic of the radar detector based on the received information.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 16, 2019
    Assignee: Valentine Research, Inc.
    Inventors: Michael Negussu, Richard L. Dickerson, Gary E. Carrelli, John D. Hiers
  • Patent number: 9658319
    Abstract: Detecting continuous wave police radar includes receiving an input signal from a first antenna, the input signal comprising a continuous wave emission within at least one radar band; sweeping a composite local oscillator signal through a range of frequencies from a first frequency to a second frequency in a predetermined time period so that the composite local oscillator signal has a first chirp rate with a first chirp rate magnitude of between 0.15 MHz/?s and 3.5 MHz/?s or even higher; and mixing the input signal from the first antenna with the sweeping composite local oscillator signal to produce an output signal having an intermediate frequency. A next step can include determining that the input signal from the first antenna includes a police radar signal based on the output signal.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 23, 2017
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Stephen R. Scholl, Richard L. Dickerson, Marwan E. Nusair
  • Patent number: 9164166
    Abstract: A device includes a radar signal detector configured to detect a police radar signal and determine a frequency of the police radar signal and a display in communication with the radar signal detector and configured to provide a first display portion associated with a first range of frequencies. In particular, the display is further configured to provide a visual indicator associated with the police radar signal, the visual indicator having a first position within the first display portion which varies based on the frequency of the police radar signal and the visual indicator having a first visual appearance when the frequency is within a predetermined subset of the first range of frequencies and a second visual appearance when the frequency is outside the predetermined subset of the first range of frequencies.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 20, 2015
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Gary E. Carrelli, Richard L. Dickerson, Michael Negussu, Stephen R. Scholl
  • Patent number: 9110149
    Abstract: A device includes a radar signal detector that can determine a signal strength of a police radar signal and a direction of a source of the police radar signal. Additionally, the device includes a display in communication with the radar signal detector that provides a single display region having a visual appearance which varies based on both the direction and on the signal strength.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: August 18, 2015
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Gary E. Carrelli, Richard L. Dickerson, Michael Negussu, Stephen R. Scholl
  • Patent number: 8810337
    Abstract: A bandpass filter passes a range of frequencies with low loss while suppressing frequencies above and below the passed range of frequencies. One or more spurlines is included into the existing structure of the bandpass filter so that a selected odd multiple of the passed frequency range is suppressed.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: August 19, 2014
    Assignee: Valentine Research, Inc.
    Inventor: Marwan E. Nusair
  • Patent number: 8704618
    Abstract: A microwave filter is provided that includes a transmission line having a signal input port and a signal output port, a stub connected to the transmission line between the input port and the output port, and a spurline embedded in the stub. The microwave filter is configured to substantially attenuate a frequency while substantially passing at least one predetermined odd harmonic of the frequency.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: April 22, 2014
    Assignee: Valentine Research, Inc.
    Inventor: Marwan E. Nusair
  • Patent number: 8478223
    Abstract: Radio frequency signals having a plurality of frequency ranges are received and coupled to a plurality of transmission lines, each of the plurality of transmission lines being formed in a corresponding plurality of generally parallel planes. Circuitry is formed for each of the plurality of transmission lines to define substantially low impedances for all of the plurality of frequency ranges except for a frequency range or ranges to be carried by the corresponding transmission line. Signals are coupled to the plurality of transmission lines so that signals with the plurality of frequency ranges are received and distributed with substantially decreased reflection and substantially high impedance matching by the plurality of transmission lines.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: July 2, 2013
    Assignee: Valentine Research, Inc.
    Inventors: John D. Hiers, Marwan E. Nusair
  • Patent number: 7579976
    Abstract: A radar detector is operated to suppress nuisance radar alerts by identifying a first signal in radar band of interest, e.g., having a frequency that is a harmonic of a first nuisance local oscillator frequency leaked from a nearby radar detector and identifying a second signal having a frequency that is a harmonic of a second nuisance local oscillator frequency leaked from the radar detector where the first and second local oscillators are companion signals. A detector is also provided that suppresses nuisance radar alerts by detecting a first signal in a radar band, providing a first alert designating the detection of the first signal, determining that the first signal is a nuisance signal, providing a second alert designating that the first signal is a false alarm, and turning off the second alert after a predetermined period.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: August 25, 2009
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Gary E. Carrelli
  • Patent number: 7450051
    Abstract: A radar detector is operated to suppress nuisance radar alerts by identifying a first signal in radar band of interest, e.g., having a frequency that is a harmonic of a first nuisance local oscillator frequency leaked from a nearby radar detector and identifying a second signal having a frequency that is a harmonic of a second nuisance local oscillator frequency leaked from the radar detector where the first and second local oscillators are companion signals. A detector is also provided that suppresses nuisance radar alerts by detecting a first signal in a radar band, providing a first alert designating the detection of the first signal, determining that the first signal is a nuisance signal, providing a second alert designating that the first signal is a false alarm, and turning off the second alert after a predetermined period.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: November 11, 2008
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Gary E. Carrelli
  • Patent number: 7061423
    Abstract: In a police radar detector, a sweep signal defines at least one first sweep signal and at least one second sweep signal with the at least one second sweep signal being seamlessly inserted into the first sweep signal so that the first sweep signal is interrupted during the second sweep signal and restored after completion of the second sweep signal so that the first sweep signal can be continued. The frequencies swept by the at least one second sweep signal are thus overswept. By assigning the frequencies swept during the at least one first sweep to the radar bands of interest and the frequencies swept during the at least one second sweep to the frequencies used in the POP mode of operation by police radar, the short bursts of energy used in the POP mode can be detected.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: June 13, 2006
    Assignee: Valentine Research, Inc.
    Inventors: Michael David Valentine, Gary Edward Carrelli, Stephen Ray Scholl
  • Patent number: 6175324
    Abstract: A novel frequency scheme for a police radar detector enables improved sweeping of the X, K, Ku and Ka radar bands. The novel frequency scheme requires two initial frequency conversions for detection of the X, K and Ka radar bands and a single initial frequency conversion for the Ku radar band with single initial frequency conversion being enabled by disabling the second mixer. During sweeping of the X, K and Ka bands, selectable, i.e., upper or lower, sideband suppression is employed to reduce undesired image sidebands and noise prior to the second frequency conversion. In addition, noise at the second IF frequency is reduced to prevent this noise from feeding through the second mixer into the second IF amplifier. During the Ku band sweep, the second mixer is bypassed and shunting of signals at the second IF frequency is disabled so that these signals enter the second IF amplifier.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: January 16, 2001
    Assignee: Valentine Research, Inc.
    Inventors: Michael David Valentine, Stephen Ray Scholl, Harry Joe Gould
  • Patent number: 5917441
    Abstract: A frequency scheme for a police radar detector enables the K band and the K.sub.a band to be scanned during a single sweep of a local oscillator which drives a mixer at its fundamental operating mode to produce intermediate frequency signals around 5 Ghz. The frequency scheme simultaneously activates two or four frequency conversion paths in the police radar detector. Accordingly, a radar warning alarm can be given upon detection of radar signals in any one of the frequency conversion paths. The ambiguity as to which one of the two or four frequency conversion paths is receiving a detected radar signal is resolved by applying first and second modulation signals to first and second local oscillators, respectively, so that the radar band of the detected radar signal can also be included within the radar warning alarm. The first and second modulation signals are in quadrature to one another and quadrature correlation is used to determine which frequency conversion path is receiving a radar signal.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: June 29, 1999
    Assignee: Valentine Research, Inc.
    Inventors: Michael David Valentine, Clarence Richard Groth, Stephen Ray Scholl
  • Patent number: 5900832
    Abstract: An input stage for a police radar detector includes a single mixer together with at least one preamplifier to detect radar signals in the X, K and K.sub.a bands. A preamplifier may be used on the X band alone, the K band alone, the K.sub.a band alone, the X and K bands or the X, K and K.sub.a bands. The use of these preamplifiers provides better noise figure; however, multiple responses cannot be scanned at the same time in bands utilizing a preamplifier with sufficient selectivity to reduce noise in its respective image bands to tolerable levels so that some or all of the receiver responses are swept independently with the preamplifier or preamplifiers being enabled one at a time as appropriate for each band being scanned. Since more sweep time is required when multiple responses are no longer swept simultaneously, a currently preferred form of the input stage couples the K.sub.a band signals to a single mixer through a preamplifier which permits multiple responses to be swept in the K.sub.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: May 4, 1999
    Assignee: Valentine Research, Inc.
    Inventors: Michael David Valentine, Clarence Richard Groth, Stephen Ray Scholl
  • Patent number: 5856801
    Abstract: An input stage of a police radar detector is configured so that a near end of a mixer is coupled to an antenna for receiving high frequency signals and a far end of the mixer is coupled to the antenna for receiving low frequency signals. A local oscillator and an intermediate frequency amplifier are also coupled to the far end of the mixer. The low frequency signals, X band police radar signals, are coupled to the far end of the mixer through a band rejection filter, which serves as a diplexer, a preamplifier and a first bandpass filter. The local oscillator is coupled to the far end of the mixer through a second bandpass filter and the far end of the mixer is coupled to the intermediate frequency amplifier through a low pass filter. The high frequency signals, K band and K.sub.a band signals, are coupled to the near end of the mixer from the antenna through a high pass filter.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: January 5, 1999
    Assignee: Valentine Research, Inc.
    Inventors: Michael David Valentine, Clarence Richard Groth, Stephen Ray Scholl
  • Patent number: 5852417
    Abstract: A radar detector suppresses nuisance alerts due to detection of a third harmonic of a common LO signal of other radar detectors by detecting a second harmonic of the offending LO signal. If a detected radar signal in the K.sub.a band is of a frequency within a suspect range corresponding to possible third harmonic spurious LO signals, a determination is made as to whether a potential alert blocking signal around the second harmonic of a nominal 11.55 Ghz signal is also present. In the illustrated embodiment, the second harmonic alert blocking signal which is checked has a frequency which is 2/3 the frequency of the detected K.sub.a signal .+-. a guard band of, for example .+-.40 Mhz, and is within a range of frequencies from about 22.813 Ghz to about 23.8 Ghz. If no blocking signal has been detected within about 10 seconds before or within three sweeps after detection of the K.sub.a band signal in the suspect range, the detected K.sub.a band signal is reported.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: December 22, 1998
    Assignee: Valentine Research, Inc.
    Inventors: Michael David Valentine, Clarence Richard Groth, Stephen Ray Scholl
  • Patent number: 5300932
    Abstract: A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations, or spectrum sweeps, or until a detected signal has been displaced by a higher priority radar signal. In the police radar signal detector of the present invention, a user of the detector is advised not only of the presence of detected radar signals, the frequency band of detected radar signals and the relative field strength of the signals but also of the number of different radar signal sources which are transmitting signals toward the user's motor vehicle. The information provided to the user for the frequency band of detected radar signals and the relative field strength of the signals is for the highest priority radar signal detected if more than one signal has been detected and is being monitored by the detector of the present invention.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: April 5, 1994
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Stephen R. Scholl, Clarence R. Groth
  • Patent number: 5250951
    Abstract: A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations, or spectrum sweeps, or until a detected signal has been displaced by a higher priority radar signal. In the police radar signal detector of the present invention, a user of the detector is advised not only of the presence of detected radar signals, the frequency band of detected radar signals and the relative field strength of the signals but also of the number of different radar signal sources which are transmitting signals toward the user's motor vehicle. The information provided to the user for the frequency band of detected radar signals and the relative field strength of the signals is for the highest priority radar signal detected if more than one signal has been detected and is being monitored by the detector of the present invention.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: October 5, 1993
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Stephen R. Scholl, Clarence R. Groth
  • Patent number: 5206651
    Abstract: A police radar signal detector detects and monitors radar signals from up to nine (9) radar sources until a detected radar signal has not been redetected for a given number of detector operations, or spectrum sweeps, or until a detected signal has been displaced by a higher priority radar signal. In the police radar signal detector of the present invention, a user of the detector is advised not only of the presence of detected radar signals, the frequency band of detected radar signals and the relative field strength of the signals but also of the number of different radar signal sources which are transmitting signals toward the user's motor vehicle. The information provided to the user for the frequency band of detected radar signals and the relative field strength of the signals is for the highest priority radar signal detected if more than one signal has been detected and is being monitored by the detector of the present invention.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: April 27, 1993
    Assignee: Valentine Research, Inc.
    Inventors: Michael D. Valentine, Stephen R. Scholl, Clarence R. Groth
  • Patent number: D338841
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: August 31, 1993
    Assignee: Valentine Research, Inc.
    Inventors: Gregg M. Davis, David E. Roche