1
Werner Boie: Method and apparatus for providing intra-field interpolation of video signals with adaptive weighting based on gradients of temporally adjacent fields. Deutsche Thomson Brandt, Joseph S Tripoli, Peter M Emanuel, Richard G Coalter, August 22, 1995: US05444493 (18 worldwide citation)

Visual artifacts, normally characteristic of interpolated images, are minimized by a method of adaptive interpolation in which pixel values of a current line to be interpolated are determined from respective values of vertically adjacent pixels of adjacent lines in a current field. The values are ad ...


2
Werner Boie, Elias Bou Sleiman: Circuit for carrying out digital Nyquist filtering of IF intermediate frequency signals. Thomson multimedia, Joseph S Tripoli, Peter M Emanuel, Kuniyuki Akiyama, October 5, 1999: US05963273 (16 worldwide citation)

The circuit for the digital filtering of IF intermediate frequency video signals comprises an A/D (analog/digital) converter and a Nyquist filter (N); an analog prefilter, suitable for selecting the desired channel, is placed upstream of the A/D converter. The Nyquist filter (N) is a digital filter ...


3
Werner Boie: Circuit for A/D conversion of a video RF or IF signal. Thomson multimedia, Joseph S Tripoli, Frederick A Wein, September 22, 1998: US05812077 (8 worldwide citation)

There is disclosed an A/D conversion circuit comprising a first A/D converter for receiving an input signal of the A/D conversion circuit and providing a digital output signal, the first A/D converter having a restricted resolution, wherein the input signal passes through delay means to a first inpu ...


4
Werner Boie: Method and apparatus for direction related interpolation. Thomson Consumer Electronics, Joseph S Tripoli, Peter M Emanuel, Richard G Coalter, January 2, 1996: US05481311 (8 worldwide citation)

For progressive scan conversion adjacent fields cannot be used to interpolate moving objects because motion blur will be introduced then. The most simple solution is to insert the average of the two adjacent lines for each missing line. A technique superior to vertical averaging represents the DIAG3 ...


5
Werner Boie: Method of digitization of intermediate frequency signals in particular television signals, and device for implementation of the method. Thomson Multimedia, Joseph S Tripoli, Frederick A Wein, May 5, 1998: US05748262 (8 worldwide citation)

A method of digitization of an intermediate frequency signal having a bandwidth that can change from one standard to another and of which one of the frequency limits of this band is substantially constant, wherein before converting the analog signal into a digital signal, the signals of the channels ...


6
Werner Boie: Method of digitization of intermediate frequency video signals and device for implementation of the method. Thomson multimedia, Joseph S Tripoli, Frederick A Wein, November 3, 1998: US05831689 (7 worldwide citation)

A method for digitizing intermediate frequency (IF) video signals, of acceptable cost, in which the signal from a tuning device is pre-filtered and amplified. This pre-processed signal is fed to a sample and hold circuit whose bandwidth covers the range up to at least the maximum intermediate freque ...


7
Andrew D Hackett, Werner Boie, Nadine Bolender: Method and apparatus for improving vertical sharpness of picture tubes. Thomson Consumer Electronics, Joseph S Tripoli, Joseph J Laks, Sammy S Henig, March 7, 1995: US05396157 (5 worldwide citation)

Large format TV tubes must produce a high peak brightness in order to be acceptable to the user. This results in a large beam current in bright areas of the picture and in a subsequent defocusing of the resulting spot on the display and in a loss of the sharpness of vertical and horizontal transitio ...


8
Werner Boie: Device for correcting phase noise in a digital receiver. Thomson multimedia, Joseph S Tripoli, Peter M Emanuel, Kuniyuki Akiyama, July 27, 1999: US05930306 (3 worldwide citation)

A digital receiver includes a mixer stage receiving a carrier signal S(t) and delivering an intermediate frequency signal S.sub.FI (t) to a demodulation stage. The mixer stage is furnished with a PLL circuit for generating a signal at a given frequency. The digital receiver further includes a phase ...


9
Werner Boie, Michel Sonrier: Digital filtering system for signals. Thomson multimedia, Joseph S Tripoli, Frederick A Wein, October 6, 1998: US05818741 (3 worldwide citation)

The disclosure relates to a A digital filtering system of a signal, including a calculation circuit that calculates the average increase in amplitude .DELTA.X.sub.av (n) between two samples X(n), and an "output signal (Y(n)) circuit" that calculates a mean, weighted by a coefficient a, of the sample ...


10
Werner Boie, Nadine Bolender, Jean Claude Chevet: Scan velocity modulation system with auxiliary vertical deflection towards bright side of video signal transitions. Thomson Consumer Electronics, Joseph S Tripoli, Peter M Emanuel, Richard G Coalter, February 13, 1996: US05491521 (1 worldwide citation)

A video signal is applied to a kinescope having scan velocity modulation for improving picture sharpness in the vertical direction. Pictures from video signals of a type having non-interpolated and vertically interpolated lines (e.g., interlace-progressive up-converted) will tend to exhibit a signif ...