U.S. Philips Corporation

Koninklijke Philips Corporation N.V.

Philips Electronics North America Corporation

Philips Electronics N.a. Corporation

Edwin A Montie

Nicolaas Lambert

Siebe Tjerk De Zwart

Petrus H Trompenaars

Theunis S Baller

Edward C Cosman

Gerardus G Van Gorkom

Ronald Van Der Wilk

Warner R T Ten Kate

Jeroen Van Engelshoven

William N Osborne

Alfred Ketting

Antonius J Rademakers

Petrus J Prinsen

Rudolf Kemner

Johannes Cornelis Driessen

Ronald Marcel Tol

Gerrit H Soepenberg

Petrus N Vis

Peter Martens

Astrid M F Dobbelaar

Frank Uittenbogaard

Adrianus H E Van Rijsewijk

Johannes Th Peerlings

Adriaan J Hoeven

The invention relates to an apparatus for reproducing programs, comprising storage means for storing a plurality of stored programs, for example, a television receiver comprising or controlling a video recorder. The apparatus comprises scheduling means for composing a personal reproduction schedule of a subset of said plurality of stored programs, in accordance with a user profile. If the apparatus is also capable of receiving broadcast programs, the scheduling means are adapted to include said broadcast programs in the reproduction schedule. A user-selectable virtual channel may be provided for easy inspection and execution of the reproduction schedule.

Apparatus and method for selecting, scheduling, and reproducing programs while accounting for scheduling gaps

The transmission system comprises a transmitter ( ) and a receiver ( ). The transmitter ( ) can transmit a number of multiplex signals ( ) to the receiver ( ). The receiver ( ) comprises storage means ( ) for storing data sections included in the multiplex signals ( ) in dependence on information present in the multiplex signals ( ). The information for the complete set of multiplex signals ( ) is contained in a single information section in at least one of the multiplex signals ( ).

Transmission system

The invention relates to an apparatus for receiving programs from a plurality of channels, comprising a tuner for tuning to any of the plurality of channels, and an electronic program guide (EPG) for presenting a schedule of the programs. The apparatus comprises virtual channel means for creating a user selectable virtual channel for reproducing selected programs from various genuine channels. The virtual channel means are adapted to control the tuner to tune to a channel currently broadcasting a selected program. When a user selects the virtual channel, the apparatus takes care of automatically switching between the genuine channels broadcasting the programs viewed on the virtual channel. As a consequence, the user can view the desired programs by simply selecting the virtual channel.

Apparatus and method for rescheduling program conflicts in a virtual channel scheduling gap

A picture display device comprises an evacuated envelope and is provided at a first side with an electroluminescent display screen and at an opposite side with an electron gun (,). Between the electron gun (,) and the display screen, the device comprises deflection means with which an electron beam generated by the electron gun (,) can be deflected during operation. The electron gun (,) has at least an electron beam-generating portion (,) and is provided with a main lens system (,) having a first electrode (,), a final electrode (,) and at least one intermediate electrode (,) across which a main lens voltage is gradually applied step-wise during operation so as to form an electron-optical main focusing lens. The intermediate electrode(s) (,) comprise a plurality of separate parts (,) whose main faces are positioned against each other and are interconnected.

Picture display device provided with an electron gun, and electron gun for use in such a device

A cathode ray tube includes an electron gun having a beam-shaping portion (,) for generating electron beams (,), a prefocusing system (,) of electrodes (,) across which a prefocusing voltage is supplied during operation so as to form an electron-optical prefocusing lens, and a main lens system (,) of electrodes (,) across which a main lens voltage is applied during operation so as to form an electron-optical main lens. The electrodes (,) are provided with securing means (,) for connection to an insulating supporting body (,) and with apertures (,) for passing the electron beams (,). Electrode (,) protrudes toward electrode (,) in such a way that the mutual distance (l,) between the two electrodes at the location of the apertures (,) therein is smaller than their mutual distance (l,) at the location of their respective securing means (,). The two electrodes (,) are spaced apart at the location of the apertures (,) substantially at a distance limited by electrostatic breakdown.

Cathode ray tube provided with an electron gun, and electrostatic lens system

A method for providing a resistive focusing lens structure for an electron beam device including forming a suspension of particles of a mixture of, by weight, of about 33-50% of an oxidic conductive material including about 40-60% of a lead ruthenate, about 25-38% of a lead titanate and about 2-15% of a ruthenium oxide, and of about 50-67% of a glass including about 30-40% of silicon dioxide (SiO.sub.2), about 3-7.5% alumina (Al.sub.2 O.sub.3), and about 53-67% of lead oxide (PbO) in a suspending medium consisting essentially of a non-acidic liquid having a boiling point of less than 150.degree. C., applying the suspension to an inside surface of a glass member to thereby provide a coating of the particles on the inside surface, firing the coating at a temperature of 700-900.degree. C. and before of after firing the coating, patterning the coating. The present method provides highly reproducible resistive focusing lens structures.

Method for providing a resistive lens structure for an electron beam

Color display device including a plurality of electron transport ducts for transporting electrons in the form of electron currents, and selection electrodes for extracting each electron current from its transport duct at predetermined locations and for directing them to different color pixels of a luminescent screen. The color selection time fractions during which the color pixels are activated are different for different color pixels in such a way that the color selection time fraction for the color pixel which requires the largest quantity of electrons for displaying maximum white is longer than the color selection time fraction of the color pixel which requires the smallest quantity of electrons for this purpose.

Color display device having color selection time divisions

The thin-type display device (1) with a vacuum envelope has a transparent front wall (3), which is provided with a display screen, and at least an electron source (5) and a duct structure, which cooperates with the electron source (5) and which extends substantially parallel to the front wall (3). Ducts (6, 6', 6') of the duct structure serve as electron-propagation means and are provided with walls (11, 11', 11') of an electrically insulating material having a secondary emission coefficient which is suitable for electron propagation. In the display device (1) 1.ltoreq.s/w.ltoreq.5 and s.multidot.w.gtoreq.5 mm.sup.2, where s is the depth of the ducts (6, 6', 6') and w is the width of the ducts (6, 6', 6'). Preferably, the width w.gtoreq.1.5 mm and the depth 3.5.ltoreq.s.ltoreq.15 mm. The voltage difference over the length of the ducts (6, 6', 6'), measured parallel to the front wall (3), is less than 75 V/cm, preferably less than 40 V/cm.

Thin-type display device

A flat display device is provided with a wire cathode or wire cathodes and with apertures which allow passage of electrons emitted by the wire cathode. The wire cathode is stretched in a wire-cathode support having positioning grooves for the wire cathode. This support engages the element in which the passages are made. The support and the element are provided with corresponding contacting surfaces.

Display device having a support structure for a wire cathode

A phosphor screen in a display device is scanned by separate electron beams in order to generate images of different frequency content in one color in substantially the same part of the phosphor screen. The different images can be perceived as a composite image for some time. The individual electron beams can be modulated by means of a cathode modulator on the basis of a high frequency and a low frequency component of an electronic image signal or on the basis of an image component and a text component of an electronic image signal. The modulations of the individual electron beams may be slightly delayed relative to one another in order to avoid overloading of the phosphor material.

CRT display device comprising a filter in the cathode modulator

A picture display device comprises an evacuated envelope and is provided at a first side with an electroluminescent display screen and at an opposite side with an electron gun (6). Between the electron gun (6) and the display screen, the device comprises deflection means with which an electron beam generated by the electron gun (6) can be deflected during operation. The electron gun (6) has at least an electron beam-generating portion (20) and is provided with a main lens system (40) having a first electrode (41), a final electrode (45) and at least one intermediate electrode (42-44) across which a main lens voltage is gradually applied step-wise during operation so as to form an electron-optical main focusing lens. The gun is further provided with means for presenting a dynamic potential (V.sub.d) to at least an electrode (41) of the main lens system (40), which is the first electrode viewed in the direction of propagation of the electron beam (7-9). For an increased dynamic focusing, a coupling capacitor (50) is arranged at least between said first electrode (41) and the subsequent electrode (42) of the main lens system (40).

Picture display device provided with an electron gun, and electron gun

A display device comprising electron-transport ducts having entrance apertures for electrons and means for generating electrons and injecting electrons into the transport ducts via the entrance apertures. Measures have been taken to improve the picture quality. For example, the location of the entrance aperture is not the same for each transport duct, but instead shows a variation. This enables an improved control of the electron flow in the transport ducts to be achieved; in particular crosstalk between the transport ducts can be reduced.

Display device of the flat-panel type comprising an electron transport

A focussing lens for an electron beam device is formed by a helically coiled resistance layer of a fired suspension of a conductive material of a mixture of a lead rathenate, a lead titanate and a ruthenium oxide in a glass formed of silicon dioxide, aluminum oxide and lead oxide.

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Eindhoven, Netherlands

Edwin A Montie