Patents by Inventor Hans-Peter Richter

Hans-Peter Richter 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: 5964116
    Abstract: A roll stand for rolling strip includes work rolls which rest against back-up rolls through intermediate rolls, wherein the work rolls and/or the back-up rolls and/or the intermediate rolls are arranged so as to be axially slidable relative to each other, and wherein at least the work rolls and/or the intermediate rolls have a curved or cylindrical contour extending over the entire roll length. The work rolls and the intermediate rolls have at one of their end faces an annular recess extending around the roll neck, wherein the annular recess is located between the roll neck and the outer surface of the roll.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: October 12, 1999
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Thorsten Bode, Hans-Peter Richter, Hans Georg Hartung
  • Patent number: 5178937
    Abstract: A papermaking machine belt comprising a flexible belt-layer impermeable to liquids which is partly integrated with a support track with cavities.
    Type: Grant
    Filed: May 1, 1990
    Date of Patent: January 12, 1993
    Assignee: Thomas Josef Heimbach GmbH & Co.
    Inventors: Eberhard Janssen, Wolfgang Schaefer, Hans-Peter Richter
  • Patent number: 5055920
    Abstract: Color television signals obtained by scanning a still picture are converted into digital video signals and stored in video frame memory for delaying the signals. Undelayed and delayed digital video signals are added together to produce a luminance signal in which the color carrier is suppressed. A circuit for detecting a change of picture provides a start signal after which the first frame of a still picture is stored and is then recycled until there is another picture change. To reduce the effect of recycling, the continuously supplied picture signal is modified by a factor of 1-k, and the recycled picture is modified by the factor k, wherein k varies between 0 and 1 (or 100%) and is a gradually rising function whose rise time extends over a multiplicity, for example 2-4, video frame periods.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: October 8, 1991
    Assignee: BTS Broadcast Television Systems GmbH
    Inventors: Gerhard Illetschko, Hans-Peter Richter, Reiner Noske
  • Patent number: 5038210
    Abstract: A test pattern generator for digital television signals produces a zone plate pattern on an orthogonal pixel raster generated by pixel and line counters. The counter outputs are supplied to respective ROMs each storing a parabolic function. Their outputs are added to define zone plate circles on the basis of the circle equation x.sup.2 =y.sup.2 =r.sup.2. Circular patterns of evenly spaced color bars are produced by interposing a square root extracting ROM ahead of another ROM which converts the phase values into amplitude values. The optional interposition of a square root function after the addition and before the conversion into amplitude values provides a different circular test pattern. It can be readily modified in various ways under control of a microprocessor or EPROM.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: August 6, 1991
    Assignee: BTS Broadcast Television Systems GmbH
    Inventors: Winfried Deckelmann, Hans-Peter Richter, Stefan Ott
  • Patent number: 4855826
    Abstract: A generator of circular zone plate signals for testing digital television signals, particularly those in circuits conforming with CCIR-Rec. 601, contains counters operating at horizontal and vertical sampling scan frequencies for producing an orthogonal pattern. The phase values generated by ROMs in response to the horizontal and vertical counters are combined additively and then converted into amplitude values by another set of ROMs separately for the luminance and chrominance signals. The counters also drive still another set of PROMs that provide, through a logic circuit, modulation of the luminance signal to show horizontal and vertical frequency markers that can be turned on and off by switches. The horizontal marker PROM also produces chrominance blanking signals for eliminating frequency components above half the sampling frequency.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: August 8, 1989
    Assignee: BTS Broadcast Television Systems GmbH
    Inventors: Gerhard Wischermann, Hans-Peter Richter
  • Patent number: 4851909
    Abstract: Both the analog and the video component of a television signal are converted to digital form, the audio component being converted at a much lower sample rate with a word length which is an integral multiple of the video word length. The digital audio component is then compressed by use of a temporary memory and read-out therefrom at a rate that is half of the sample rate of the digtal video component, after which the word length is halved and the word rate doubled in a shift register circuit. In that form the audio component is inserted in horizontal blanking intervals of the video component in a compatible form by a multiplexer, the output of which is read into a single picture field or full picture memory under control of an address generator clocked in synchronism with the incoming video component. The buffer memory is read-out at a rate controlled by a reference signal such as is used for synchronism in a television studio.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: July 25, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Reiner Noske, Hans-Peter Richter, Jurgen Heitmann
  • Patent number: 4750343
    Abstract: The device for the detection and regulation of the planeness of strip-shaped rolled products, especially thin-gage strips (1), for cold rolling mills comprises a planeness measuring system with individual measuring elements, which system includes, for example, a planeness measuring roller (3) composed of individual measuring disks (4) with force measuring transmitters arranged along the circumference. By the planeness measuring roller (3), the strip tensile stress is measured over the strip width (5), from which is calculated the longitudinal distribution (.DELTA.L/L) over the strip width as a characteristic variable for the strip planeness. Regulation of the strip tensile stress is effected by installations for cooling and/or lubrication and/or bending and/or pivoting of the rolls.
    Type: Grant
    Filed: May 21, 1985
    Date of Patent: June 14, 1988
    Inventors: Gerhard Richter, Hans-Peter Richter, Axel Barten
  • Patent number: 4706110
    Abstract: The synchronously demodulated chrominance signals (C.sub.1d, C.sub.2d) each alternately represent, line by line, the sum and difference of the color difference signals U and V. They are supplied to a multiplexer (21) switched by a meander wave having a 2H oscillation period and supplied therefrom to an accumulator for evaluation of the synchronizing color carrier bursts. During the burst, a succession of sampling frequency pulses sample the burst portion of one chrominance signal (C.sub.2d) with the results being added in an accumulator and then loaded in a first register (25) to provide a control signal for the color carrier oscillator and from the burst portion of the other chrominance signal (C.sub.1d) a potential is similarly produced by the accumulator, loaded in a second register (26) and evaluated in a PROM to determine whether the switching of the reversal circuit or one of the color difference signals (V) is timed for the correct horizontal line or for the wrong one.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: November 10, 1987
    Assignee: Robert Bosch GmbH
    Inventor: Hans-Peter Richter
  • Patent number: 4641180
    Abstract: A single television signal delay chain is interconnected with linear combination matrices for frame comb filtering and line comb filtering. Related circuits provide correction signals for controllably eliminating the frame or the line comb filtering. Detectors are provided for movement and for edges in the picture content and these detectors supply signals to a picture blending circuit for selecting the most appropriate kind of comb filtering for the current picture content. The circuits operate on a digital basis with a sampling frequency which is an integral multiple of the line scanning frequency.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: February 3, 1987
    Assignee: Robert Bosch GmbH
    Inventor: Hans-Peter Richter