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| Number | Title | Issue Date |
| 6980116 | Method for failure detection in a radio frequency device A method for detecting a failure in a radio frequency (RF) device (200) that includes a transistor (210) having a first terminal at an RF input (220), a second terminal at an RF output (260), and a third terminal at an RF common (230 | 12/27/2005 |
| 6249115 | Method of controlling brightness and contrast in a raster scan digital oscilloscope A raster scan digital signal acquisition and waveform display instrument displays a dot representing a signal event with a color parameter in accordance with the value of a corresponding data word stored in a raster scan memory. A user interface control e... | 06/19/2001 |
| 5128609 | Setting up of quadrature signals A device to assist in setting up the pitch, roll, yaw and standoff of a read head relative to a scale, so as to improve the quadrature relationship of its outputs. Two superimposed Lissajous figures are produced on an oscilloscope screen. One of these fig... | 07/07/1992 |
| 4829366 | Method and apparatus for measuring delay and/or gain difference using two different frequency sources The relative gain and/or delay of two signal transmission channels may be measured by impressing on each channel a repetitive signal comprising a burst packet. The burst packets of the signals applied to the channels are of constant, but different, freque... | 05/09/1989 |
| 4811083 | Apparatus for displaying the phase and amplitude of a chrominance signal Apparatus for displaying in polar coordinates the relative phase and amplitude of a chrominance signal comprises a display device, such as a CRT display device, having a circuit for adjusting the brightness of the light dot. The apparatus also comprises a... | 03/07/1989 |
| 4691358 | Stereo image display device An apparatus is disclosed which provides a display of the stereo image and aural perspective of stereophonic sounds. Left and right signal are processed to form rectified sum and difference signals which are applied to the signals which are applied to the... | 09/01/1987 |
| 4680620 | Measurement of SC/H phase using a subcarrier time mark generator and a calibrated phase shifter Apparatus for indicating the timing relationship between a reference point of a repetitive input signal, e.g. the horizontal sync point of a video signal, and a signal element that repeats at a higher frequency than the input signal, e.g. an element of th... | 07/14/1987 |
| 4677481 | Dual display monitor A waveform monitor for television has dual video channels displayed simultaneously side-by-side. The two channels are synchronized with each other or with an external sync signal and are input to a multiplexer prior to the display. A microprocessor contro... | 06/30/1987 |
| 4648113 | Method and apparatus for providing a visual indication of a relationship between two signals A visual indication of the relationship between first and second electrical signals, such as the left and right channel signals in a stereophonic audio system, is provided through use of a video vectorscope. The first and second signals are used to modula... | 03/03/1987 |
| 4586036 | Graphics display systems Graphics display systems ideally suited for the display of certain types of graphics information are disclosed. The display systems utilize a black and white or color raster scan display having a vertical rather than a conventional horizontal raster scan.... | 04/29/1986 |
| 4488168 | Vector scope In a method and a vector scope for measuring distortion of a subcarrier signal causing color aberration of a color television signal, a carrier chrominance signal resulting from a color bar signal transmitted in a transmission system and a reference carri... | 12/11/1984 |
| 4434346 | Contact detector A method and apparatus for detecting the point of contact between a workpiece of electrically conductive material in a machine and an electrically conductive element movable relative to and insulated from the workpiece, such as the electrode of an electri... | 02/28/1984 |
| 4364080 | Digital video analyzer A digital video analyzer apparatus which provides in a single enclosure, waveform displays, composite video line displays, differential gain/differential phase displays, and vector displays, for a number of different video input signals, the apparatus bei... | 12/14/1982 |
| 4222106 | Functional curve displaying process and apparatus A process and two embodiments of an apparatus are disclosed for displaying, on the screen of a conventional home television receiver, curves illustrating analog signal potential functions of the form U(x,y). The process generally requires generating first... | 09/09/1980 |
| 4184827 | Apparatus for monitoring and controlling the operation of a dual platen press Apparatus for monitoring and controlling the operation of a dual platen press used in the manufacture of nuclear fuel pellets is disclosed. The apparatus includes means for indicating the displacements of both platens and imposing the displacements of the... | 01/22/1980 |
| 4145706 | Video display This invention concerns a circuit arrangement for visually representing a horizontal frequency coupled input signal on the picture screen of a video display device such as a domestic television receiver. This is achieved by comparing the input signal to b... | 03/20/1979 |
| 4133046 | Device for displaying a measuring voltage, for example an EKG signal, on the viewing screen of an oscillograph tube In an illustrated embodiment an analog signal is sampled by means of a bucket brigade store. The stored samples are then repeatedly cycled through the store during refreshment of a visual display via a controlled amplifier. The storer also receives a refe... | 01/02/1979 |
| 4105932 | "Slewed pulse" scope sweep calibrator A slewed-pulse display is provided for calibrating the time-base axis of an oscilloscope. In a repetitive-sweep display, the leading edges of incrementally delayed successive pulses are slewed across the display screen. Timing and linearity adjustments ma... | 08/08/1978 |
| 4058826 | Method and system for generating oscillographic displays of analog signals upon a TV An oscillographic display of at least one input signal which is of arbitrary period or is aperiodic may be generated upon a standard television receiver by storing the input signal in a storage medium containing a multiplicity of storage elements and trig... | 11/15/1977 |
| 3958269 | Color subcarrier frequency comparator Apparatus for measuring the frequency of a reference signal which utilizes he color subcarrier signal of a television receiver as a standard frequency signal. In a first embodiment, the reference signal controls a circuit to develop bursts of a synthesized... | 05/18/1976 |
