Abstract: A temperature detection circuit comprises an OP amp, a reference current generator, a temperature detection voltage generator, a comparator, and a band gap reference voltage generator. The OP amp receives a band gap reference voltage and a first voltage. The reference current generator generates the first voltage and a reference voltage in response to an output signal of the OP amp. The temperature detection voltage generator generates a temperature detection voltage in response to an ambient temperature and the output signal of the OP amp. The comparator compares the reference voltage with the temperature detection voltage to generate a temperature control signal. The band gap reference voltage generator generates the band gap reference voltage. Accordingly, the temperature detection circuit of the present invention can perform high or low temperature detection stably in supply voltage and temperature variations and thus protect the operation of the integrated circuit.

Abstract: An internal voltage converter and method is provided capable of reducing power consumption using a selective voltage reference, a semiconductor device including the internal voltage converter. A semiconductor device uses the internal voltage converter which discriminates an IVC stand-by state from a normal operation state, selects a voltage reference with low power consumption among selective voltage references in the IVC stand-by state, and generates an internal voltage.

Abstract: A cathode ray tube includes a panel having a front screen portion on which a phosphor screen is formed and a panel flange integrally formed on an edge of the front screen portion, a funnel connected to the panel flange, a deflection yoke disposed around the funnel, a neck connected to the funnel, an electron gun disposed in the neck, a color selection apparatus for selecting electron beams emitted from the electron gun and allowing the selected electron beams to land on corresponding phosphors, and an inner shield for shielding geomagnetism, the inner shield mounted on the color selection apparatus. The color selection apparatus includes a mask having a plurality of electron beam-passing apertures, the mask being rectangular and having a longitudinal axis and a lateral axis, a frame for supporting the mask in a tensioned state, and a pair of side shield members mounted on lateral sides of the frame to shield the geomagnetism.

Abstract: A temperature detection circuit comprises an OP amp, a reference current generator, a temperature detection voltage generator, a comparator, and a band gap reference voltage generator. The OP amp receives a band gap reference voltage and a first voltage. The reference current generator generates the first voltage and a reference voltage in response to an output signal of the OP amp. The temperature detection voltage generator generates a temperature detection voltage in response to an ambient temperature and the output signal of the OP amp. The comparator compares the reference voltage with the temperature detection voltage to generate a temperature control signal. The band gap reference voltage generator generates the band gap reference voltage. Accordingly, the temperature detection circuit of the present invention can perform high or low temperature detection stably in supply voltage and temperature variations and thus protect the operation of the integrated circuit.

Abstract: A tension mask frame assembly for a color cathode ray tube, includes: a tension mask having a plurality of strips on which slots are formed, the slots being separated by a predetermined distance from each other on a thin plate; real bridges for partitioning slots at a predetermined pitch interval by connecting adjacent ones of a plurality of strips to each other; and a frame which supports the corresponding edges of the tension mask; whereby the vertical pitch of the real bridges becomes smaller, such as in a stepwise relation, in a direction from the center portion of the tension mask to the peripheral portion of the tension mask.

Abstract: A cathode ray tube includes a color selection apparatus mounted between a phosphor screen and an electron gun, and support members for supporting the color selection apparatus. Each of the support members is formed by a spring including a fixed section secured to the color selection apparatus, a locking section connected to the cathode ray tube, and a center section formed between these elements. The fixed section and the center section are separated by and bent at a first folding trace, and the center section and the locking section are separated by and bent at a second folding trace. Also, if a direction along a width of the springs is X, the first folding trace has an angle &thgr;1 with a straight line drawn on the fixed section along direction X, and the second folding trace has an angle &thgr;2 with a straight line drawn on the center section along direction X, the angle &thgr;2 is greater than the angle &thgr;1.

Abstract: A voltage-glitch detection circuit includes a voltage comparator having two input terminals with different capacitance resistance charge/discharge time. Voltage dividers are coupled to the two input terminals of the voltage comparator respectively, and commonly receive a supply voltage. One of the voltage dividers is supplied to the voltage comparator as a reference voltage of the voltage comparator, and the other is supplied as a glitch detection voltage to the voltage comparator.

Abstract: A tension mask frame assembly for a color cathode ray tube, including: a tension mask having a plurality of strips on which slots are formed being separated a predetermined distance from each other on a thin plate, real bridges for partitioning slots at a predetermined pitch interval by connecting adjacent ones of a plurality of strips to each other; and a frame which supports the corresponding edges of the tension mask, whereby a tensile force is applied to the tension mask, and the vertical pitch of the real bridges becomes smaller in a direction from the center portion of the tension mask to the peripheral portion of the tension mask.

Abstract: A tension mask frame assembly for a color picture tube includes a tension mask where a plurality of strips formed on a thin plate to be separated a predetermined distance forming slots, a plurality of tie bars for connecting the strips and sectioning the slots at a predetermined pitch, and a plurality of dummy bridges extending from at least one strip toward a facing strip in the slots sectioned by the tie bars, and a frame supporting the edge of the tension mask so that a not less than can be applied to the tension mask. In the tension mask frame assembly, the area of the dummy bridge of the tension mask is smaller from the central portion of the tension mask to the peripheral portion thereof.

Abstract: A semiconductor integrated circuit is provided, which includes: a first circuit; a second circuit; a data BUS; and first and second encryption/decryption circuits for encrypting/decrypting data transmitted between the first and second circuits on the data bus. The first encryption/decryption circuit is for encrypting data output from the first circuit, outputting the encrypted data to the data BUS, decrypting an encrypted data received from the second encryption/decryption circuit, and providing the decrypted data to the first circuit. The second encryption/decryption circuit is for decrypting the encrypted data received from the first encryption/decryption circuit, providing the decrypted data to the second circuit, encrypting data output from the second circuit, and outputting the encrypted data to the data BUS.

Abstract: A cathode ray tube with a central tube axis Z includes a panel with an inner phosphor screen and a rear portion. The panel has a substantially rectangular effective screen portion with two long sides in a horizontal axis direction, two short sides in a vertical axis direction and four edges in a diagonal axis direction. A funnel is connected to the rear portion of the panel. The funnel sequentially has a body with a large-sized end and a small-sized end, and a cone portion with a large-sized end and a small-sized end. The cone portion has a thickness Th in the horizontal axis direction, a thickness Tv in the vertical axis direction and a thickness Td in the diagonal axis direction. The horizontal thickness Th, the vertical thickness Tv and the diagonal thickness Td of the cone portion of the funnel in the tube axis Z direction satisfy the following condition: Th(z)=Tv(z)>Td(z).

Abstract: A cathode ray tube includes a panel having a front screen portion on which a phosphor screen is formed and a panel flange integrally formed on an edge of the front screen portion, a funnel connected to the panel flange, a deflection yoke disposed around the funnel, a neck connected to the funnel, an electron gun disposed in the neck, a color selection apparatus for selecting electron beams emitted from the electron gun and allowing the selected electron beams to land on corresponding phosphors, and an inner shield for shielding geomagnetism, the inner shield mounted on the color selection apparatus. The color selection apparatus includes a mask having a plurality of electron beam-passing apertures, the mask being rectangular and having a longitudinal axis and a lateral axis, a frame for supporting the mask in a tensioned state, and a pair of side shield members mounted on lateral sides of the frame to shield the geomagnetism.

Abstract: A cathode ray tube includes a panel having a substantially flat outer surface and an inner curved surface with a phosphor screen. The panel has a substantially rectangular effective screen portion with two long sides parallel to each other, two short sides parallel to each other and four rounded edges interconnecting each long side and the neighboring short side. The effective screen portion is structured such that a first line V1 interconnecting centers of the long sides, a second line H1 interconnecting centers of the short sides and a third line D1 interconnecting centers of the rounded edges opposite to each other meet at a point. The effective screen portion has a first thickness Tv at the centers of the long sides, a second thickness Th at the centers of the short sides, a third thickness Td at the centers of the edges and a fourth thickness Tc at the meeting point of the all three lines V1, H1 and D1.

Abstract: A tension mask and a tension mask and frame assembly for a color cathode ray tube (CRT). The tension mask and frame assembly includes: a tension mask including an aperture portion having a series of strips disposed at predetermined intervals to define slits, and tie bars interconnecting adjacent strips, and a non-aperture portion having side members disposed parallel to the strips on both sides of the aperture portion, wherein strips near the side of the aperture portions and the side members have a predetermined partial pin cushion curvature, and a frame including a pair of support members disposed parallel to each other, for supporting the tension mask under tension acting in the vertical direction of the strips, such that a tension acts on the horizontal direction of the tension mask through the tie bars, due to the curvature of the tension mask, and a pair of elastic members fixed to both ends of the support members for supporting the support members.

Abstract: A tension mask frame assembly for a color cathode ray tube, including: a tension mask having a plurality of strips on which slots are formed being separated a predetermined distance from each other on a thin plate, real bridges for partitioning slots at a predetermined pitch interval by connecting adjacent ones of a plurality of strips to each other; and a frame which supports the corresponding edges of the tension mask, whereby the vertical pitch of the real bridges becomes smaller, such as in a stepwise relation, in a direction from the center portion of the tension mask to the peripheral portion of the tension mask.

Abstract: A tension mask frame assembly for a color picture tube includes a tension mask where a plurality of strips formed on a thin plate to be separated a predetermined distance forming slots, a plurality of tie bars for connecting the strips and sectioning the slots at a predetermined pitch, and a plurality of dummy bridges extending from at least one strip toward a facing strip in the slots sectioned by the tie bars, and a frame supporting the edge of the tension mask so that a not less than can be applied to the tension mask. In the tension mask frame assembly, the area of the dummy bridge of the tension mask is smaller from the central portion of the tension mask to the peripheral portion thereof.

Abstract: A cathode ray tube includes a panel having a substantially flat outer surface and an inner curved surface with a phosphor screen. The panel has a substantially rectangular effective screen portion with two long sides parallel to each other, two short sides parallel to each other and four rounded edges interconnecting each long side and the neighboring short side. The effective screen portion is structured such that a first line V1 interconnecting centers of the long sides, a second line H1 interconnecting centers of the short sides and a third line D1 interconnecting centers of the rounded edges opposite to each other meet at a point. The effective screen portion has a first thickness Tv at the centers of the long sides, a second thickness Th at the centers of the short sides, a third thickness Td at the centers of the edges and a fourth thickness Tc at the meeting point of the first to third lines V1, H1 and D1.

Abstract: A CRT is provided with a panel having a curved inner phosphor-coated side, a substantially flat outer viewing screen side and a rectangular-shaped effective screen area ranged through the inner phosphor-coated side and the outer viewing screen side. A shadow mask faces the phosphor-coated side of the panel. The shadow mask is formed to the curved shape of the phosphor-coated side. The rectangular-shaped effective screen area of the panel has two horizontally parallel long sides meeting a vertical axis, two vertically parallel short sides extended perpendicular to the horizontal sides, and four boundary corners formed between the neighboring horizontal and vertical sides. The vertical sides meet a horizontal axis and each of the boundary sides meets a diagonal axis. The meeting point of a horizontal long side and the vertical axis has a thickness Tv. The meeting point of a vertical short side and the horizontal axis has a thickness Th.

Abstract: A cathode ray tube includes a panel having a substantially flat outer surface and an inner curved surface with a phosphor screen. The panel has a substantially rectangular effective screen portion with two long sides parallel to each other, two short sides parallel to each other and four rounded edges interconnecting each long side and the neighboring short side. The effective screen portion is structured such that a first line V1 interconnecting centers of the long sides, a second line H1 interconnecting centers of the short sides and a third line D1 interconnecting centers of the rounded edges opposite to each other meet at a point. The effective screen portion has a first thickness Tv at the centers of the long sides, a second thickness Th at the centers of the short sides, a third thickness Td at the centers of the edges and a fourth thickness Tc at the meeting point of the first to third lines V1, H1 and D1.