Abstract:
A thermion emitting oxide cathode comprising a metal cap and a cathode sleeve, the metal cap being coated with a thermion emitting material layer containing a barium-based alkaline earth metal, wherein the thermion emitting material layer is made of a titanate of the barium-based alkaline earth metal. The thermion emitting oxide cathode is made by mixing a titanium tetrachloride (TiCl.sub.4) with an aqueous solution of barium-strontium-calcium dichloride �(Ba--Sr--Ca)Cl.sub.2 !, dropping the mixture into an oxalate solution of 80.degree. C., thereby precipitating a barium-strontium-calcium titanate hydrate �(Ba--Sr--Ca)TiO(C.sub.2 O.sub.4).sub.2.4H.sub.2 O!, and treating the precipitated barium-strontium-calcium titanate hydrate at a temperature of 500.degree. to 700.degree. C. to remove a plurality of water molecules, thereby producing a suspension of barium-strontium-calcium titanate �(Ba--Sr--Ca)TiO.sub.3 !.
Abstract:
A hydrogen occluded alloy and a process for producing the above alloy are disclosed. The above process mechanically forms the hydrogen occluded alloy having improved initial discharging characteristics. In the above process, either a powdered LaNi.sub.5 alloy or rare earth metals, such as la, Ce, Pr and Nd, and a powdered CaCu.sub.5 alloy of Mm-Mn-Ni-Al-Co alloys is mixed with a powdered Laves alloy of Zr-Mn-V-Cr-Ni alloys into a powdered alloy mixture. Thereafter, the alloy mixture is applied with a mechanical impact by a high energy ball mill with an attritor, thereby mechanically forming the hydrogen occluded alloy. The above process easily controls the manganese component while producing the hydrogen occluded alloy through the mechanical alloying.
Abstract:
Provided is a method for saving power of a portable device that exists in a location where a fixed telephone network is available, the method including transferring a mobile communication network-based call connection request message transmitted to the portable device into a fixed telephone network-based call connection request message; and receiving the transferred call connection request message in a fixed telephone network support communication module included in the portable device, and forming a fixed telephone network-based call channel in place of the mobile communication network based call.
Abstract:
A dual mobile handset supporting CDMA and GSM communication and call processing method for the dual mode mobile handset, implemented to receive CDMA and GSM calls and process CDMA and GSM signals using different applications, thereby adaptively receiving the CDMA and GSM calls, are provided. The dual mode mobile handset includes first and second transceivers for receiving and transmitting first and second communication mode calls, respectively; first and second controllers for assigning first and second communication mode call identifiers to a call received through the first and second communication mode transceivers, respectively; a user interface module for activating one of call processing applications for the first and second communication mode calls on the basis of the call identifier assigned to the received call; and an inter-process communication module for matching one of the first and second controller to the user interface module.
Abstract:
Provided is a method for saving power of a portable device that exists in a location where a fixed telephone network is available, the method including transferring a mobile communication network-based call connection request message transmitted to the portable device into a fixed telephone network-based call connection request message; and receiving the transferred call connection request message in a fixed telephone network support communication module included in the portable device, and forming a fixed telephone network-based call channel in place of the mobile communication network based call.
Abstract:
A dual mobile handset supporting CDMA and GSM communication and call processing method for the dual mode mobile handset, implemented to receive CDMA and GSM calls and process CDMA and GSM signals using different applications, thereby adaptively receiving the CDMA and GSM calls, are provided. The dual mode mobile handset includes first and second transceivers for receiving and transmitting first and second communication mode calls, respectively; first and second controllers for assigning first and second communication mode call identifiers to a call received through the first and second communication mode transceivers, respectively; a user interface module for activating one of call processing applications for the first and second communication mode calls on the basis of the call identifier assigned to the received call; and an inter-process communication module for matching one of the first and second controller to the user interface module.
Abstract:
An image sensor includes a unit pixel including a plurality of color pixels with a depth pixel. A first signal line group of first signal lines is used to supply first control signals that control operation of the plurality of color pixels, and a separate second signal line group of second signal lines is used to supply second control signals that control operation of the depth pixel.
Abstract:
A method of fabricating a microlens includes forming layer of photoresist on a substrate, patterning the layer of photoresist, and then reflowing the photoresist pattern. The layer of photoresist is formed by coating the substrate with liquid photoresist whose viscosity is 150 to 250 cp. A depth sensor includes a substrate and photoelectric conversion elements at an upper portion of the substrate, a metal wiring section disposed on the substrate, an array of the microlenses for focusing incident light as beams onto the photoelectric conversion elements and which beams avoid the wirings of the metal wiring section. The depths sensor also includes a layer presenting a flat upper surface on which the microlenses are formed. The layer may be a dedicated planarization layer or an IR filter, interposed between the microlenses and the metal wiring section.
Abstract:
A multiparty call processing method and mobile terminal implemented with the multiparty call processing method is provided. A multiparty call processing method for a mobile terminal detects a call request to a first network, determines whether the mobile terminal is in a full state of the first network, and sends a call request message to a second network when the mobile terminal is in the full state of the first network.
Abstract:
The present invention pertains to a wireless local area network (WLAN) access apparatus and a WLAN access method, and more particularly, to a WLAN access apparatus for determining approval/denial of an access to a mobile communication terminal when access to a WLAN is requested through the WLAN access apparatus and an operating method thereof. Embodiments of the present invention include: a WLAN access apparatus, which has a unique identification (ID), for connecting a wireless network with a mobile communication terminal according to a wireless data exchange protocol; a social network service (SNS) server for providing an SNS; and an authentication server for determining a WLAN access approval according to whether a user of the mobile communication terminal successfully logs into the SNS server when the mobile communication terminal requests for access to a WLAN through the WLAN access apparatus.