1
Daguet Jacques Lucien, Bellanger Maurice Georges, Lepagnol Guy Pierre: Single sideband system for digitally processing a given number of channel signals. Telecommunications Radioelectriques TRT, Trifari Frank R, Steckler Henry I, June 24, 1975: US3891803 (30 worldwide citation)

A single sideband system for digitally processing a given number of analog channel signals, provided with: a digital filter to which filter coefficients are applied which characterized a lowpass filter having a cut-off frequency which is equal to half the bandwidth of the channel signals; a fast fou ...


2
de Niet Edmond: Method of converting image signals generated in a non-interlaced manner into image signals interlaced in accordance with a television standard. US Philips Corporation, Trifari Frank R, Steckler Henry I, August 27, 1974: US3832487 (27 worldwide citation)

A method of converting image signals L.sub.1, L.sub.2 L.sub.3 . . . L.sub.n generated in a non-interlaced manner for standard display into interlaced signals L.sub.1, L.sub.3 . . . and L.sub.2, L.sub.4 . . . The image signals are split up into three groups L.sub.1, L.sub.4 . . . L.sub.2, L.sub.5 . . ...


3
Zegers Leo Eduard, Snijders Wilfred Andre Maria: System for transmitting information in the prescribed frequency-band. US Philips Corporation, Trifari Frank R, Steckler Henry I, July 16, 1974: US3824468 (26 worldwide citation)

A transmission system in which auxiliary information in the form of a pulse pattern is transmitted with main information without frequency or time separation. Secrecy in the system is increased by also varying the frequency of the main information in accordance with the pulse pattern.


4
Linnecar Trevor Paul Richard: H. f. electrical signal reception with two wire line carrying power, control, and information signals. US Philips Corporation, Trifari Frank R, Steckler Henry I, October 1, 1974: US3839676 (23 worldwide citation)

Electrical receiving apparatus in which a signal operating device at a receiving aerial is connected to the remainder of the apparatus by a two-line feeder. The feeder conveys in one direction an electrical signal from the operating device either at carrier frequency or at a frequency displayed ther ...


5
Nillesen Antonius Hendrikus Hubertus Jozef: Circuit arrangement for generating a sawtooth deflection current through a line deflection coil. US Philips Corporation, Trifari Frank R, Steckler Henry I, September 16, 1975: US3906305 (22 worldwide citation)

A circuit arrangement for generating the line deflection current in which the line deflection coil forms part of a network which also includes a diode, a trace capacitor and a retrace capacitor. One or more further similar networks all having the same retrace time are arranged in series and this ser ...


6
Schmidt Rolf, Carl Klaus, Gustin Pol Ambroise Ghislain Joseph, Schayes Raymond Georges: Facsimile apparatus for writing and reading mechanically moving documents. US Philips Corporation, Trifari Frank R, Steckler Henry I, December 30, 1975: US3930119 (22 worldwide citation)

The invention relates to a facsimile apparatus using positionally controllable light beams for writing and reading information on mechanically moving documents. The apparatus comprises an electronically controllable switching mask plate which is made of a material containing mixed crystals of lead z ...


7
Janssen Peter Johannes Hubertus, VAN Hattum Johannes Simon Albert, Korver Jan Abraham Cornelis: Line time base in a television receiver. US Philips Corporation, Trifari Frank R, Steckler Henry I, June 24, 1975: US3891800 (21 worldwide citation)

A line time base in a television receiver including two circuits for the indirect synchronisation. The first circuit reacts slowly to the line synchronising pulses received from the transmitter whereas the second circuit reacts rapidly to the variations of the line output signal. Such variations occ ...


8
van de Plassche Rudy Johan: Four-quadrant multiplier circuit. US Philips Corporation, Trifari Frank R, Steckler Henry I, September 24, 1974: US3838262 (21 worldwide citation)

A four-quadrant multiplier circuit, constituted in a known manner by three differential stages, one stage of which receives the x-signal and supplies the current for the two other stages, which receive the y-signal in parallel. From the output currents of these two last-mentioned differential stages ...


9
Waters Lyle E: Non detachable pull top can. Lawrence Peska Associates, Steckler Henry I, November 12, 1974: US3847300 (19 worldwide citation)

A rimmed can has a top with scoring and folding lines on it. A band is beneath the scored section and is attached to a pull ring. A pair of extruded frictional clamps are on the pull ring so that when the top is pulled, the tab-shaped ruptured section is folded back along the fold line and the clamp ...


10
Hoogendijk Adrianus Huibert: Apparatus for reading a disc-shaped record carrier. US Philips Corporation, Trifari Frank R, Steckler Henry I, September 16, 1975: US3906152 (19 worldwide citation)

An apparatus for reading a disc-shaped record carrier on which a video signal is recorded in optically coded form. To compensate for the varying frequency response of the record carrier as a function of the radial scanning position a correction device is provided. Said correction device employs the ...