Abstract: The present invention relates to an antenna module which can minimize the occupying space in an electronic device, enhancing degrees of freedom to increase efficiency in space utilization, thereby accommodating miniaturization and multi-functionality of the electronic device, and an electronic device having the same. The antenna module includes a flexible substrate, an antenna element having a feeder part, a first fixing part, and a radiation part. The antenna module further includes a feeder line connected to the feeder part having a feeder pad, a first fixing pad connected to the first fixing part, and a pad coupling element. In the invention, signals are processed via interaction between the resonance of the current running through the feeder line to the radiation part and the resonance of the current coming into the pad coupling element.

Abstract: A bidirectional optical transceiver is disclosed. The transceiver comprises an optical fiber which is adapted to input/output optical signals and has a slant surface polished with an angle, a substrate having a groove formed on its upper portion to position the optical fiber therein, a wavelength distributor filter inserted into the substrate with a slant substantially matching the angle in the optical fiber, a photodiode positioned on the substrate to receive optical signals, a TO-Can having a laser diode that is positioned in a location opposite to the optical fiber to transmit optical signals, and a single housing adapted to mount the optical fiber, the substrate, and the TO-Can thereon.

Abstract: The present invention relates to a nanoparticle-protein-hydrogel composite comprising (1) a polysaccharide-functionalized nanoparticle comprising a core composed of a biodegradable polymer, a hydrogel surface layer composed of a biocompatible polymer emulsifier, and a polysaccharide physically bound to the core and/or the hydrogel layer; (2) a protein forming a specific binding with the polysaccharide; and (3) a hydrogel matrix composed of a biocompatible polymer as a matrix for the nanoparticle. The present also relates to a drug delivery system and a bone defect replacement matrix comprising the composite for sustained release, and the preparation method thereof. Further, the present invention also provides a method for controlling the release rate of a protein drug by changing the content of the polysaccharide in a unit mass of the nanoparticle and/or by changing the content of the nanoparticle in a unit mass of the composite.

Abstract: A broadband internal antenna includes a first radiator having a radiation part with one or more coils having different pitch intervals connected in series to each other, and a second radiator having at least one conductive strip line arranged parallel to a longitudinal direction of the first radiator. The antenna further includes a connection part to which an end of the at least one conductive strip line is connected, to which a first end of the first radiator is attached and in which a part for supplying current to the antenna and a part for grounding the antenna are formed, and an attachment pad to which a second end of the first radiator is attached and from which current is drawn. Current flowing through the first radiator and current flowing through the strip lines form current paths in different directions to set a certain broadband using mutual Electromagnetic (EM) coupling.

Abstract: Methods are provided for operating a magnetic random access memory device including a memory cell having a magnetic tunnel junction structure on a substrate. In particular, a writing current pulse may be provided through the magnetic tunnel junction structure, and a writing magnetic field pulse may be provided through the magnetic tunnel junction structure. In addition, at least a portion of the writing magnetic field pulse may be overlapping in time with respect to at least a portion of the writing current pulse, and at least a portion of the writing current pulse and/or at least a portion of the writing magnetic field pulse may be non-overlapping in time with respect to the other. Related devices are also discussed.

Abstract: Provided is an image sensor assembly and a method for fabricating the same. The image sensor assembly includes an image sensor and a transparent cover. The image sensor detects an image has an exposed light receiving circuit on its surface. The transparent cover has a support. The support protrudes from the surface of the transparent cover to define a predetermined area on the surface of the transparent cover. The support is bonded to the surface of the image sensor to surround the light receiving circuit. The light receiving circuit is sealed by the transparent cover.

Abstract: An optical receiver of a bidirectional optical communication module is fabricated through an assembling process in which multiple modules are assembled concurrently. The module includes a first substrate formed with a groove, an optical fiber located in the groove and having a flat surface, a reflective filter inserted between the first substrate and the fiber with a predetermined inclination angle in order to reflect an incident optical signal, a second substrate supporting the fiber and mounted on the first substrate such that the flat surface.

Abstract: Disclosed herein is a chip antenna for terrestrial DMB. The chip antenna comprises a dielectric block, a main antenna device formed with conductive patterns in the dielectric block such that a plurality of unit lamination structures of the conductive patterns having a meander line structure in the direction of the Z-axis in an XZ plane are arranged in the direction of the Y axis while adjacent unit lamination structures are connected to each other, forming a lamination structure having the meander line structure in the directions of the Y-axis, and the plurality of lamination structures are arranged in the direction of the X-axis and adjacent lamination structures are connected to each other in the direction of the X-axis to have the meander line structure, and a T-shaped assistant antenna device formed at an upper or lower dielectric layer in the main antenna device.

Abstract: Disclosed is a method and apparatus for transmitting and outputting data in voice communication over a traffic channel. The apparatus includes: a signal generator for generating a low frequency signal corresponding to a key signal inputted during voice communication; a signal synthesizer for synthesizing the low frequency signal and a voice signal; a radio communication unit for transmitting the synthesized signal over the traffic channel; a signal separator for separating a low frequency signal from a signal received and processed by the radio communication unit; and a data output unit for detecting a frequency of the separated low frequency signal and outputting data indicated by the detected frequency.

Abstract: Methods are provided for operating a magnetic random access memory device including a memory cell having a magnetic tunnel junction structure on a substrate. In particular, a writing current pulse may be provided through the magnetic tunnel junction structure, and a writing magnetic field pulse may be provided through the magnetic tunnel junction structure. In addition, at least a portion of the writing magnetic field pulse may be overlapping in time with respect to at least a portion of the writing current pulse, and at least a portion of the writing current pulse and/or at least a portion of the writing magnetic field pulse may be non-overlapping in time with respect to the other. Related devices are also discussed.

Abstract: Disclosed herein is a multi-layered chip antenna using double coupling feeding.

Abstract: Disclosed herein is a chip antenna for terrestrial DMB. The chip antenna comprises a dielectric block, a main antenna device formed with conductive patterns in the dielectric block such that a plurality of unit lamination structures of the conductive patterns having a meander line structure in the direction of the Z-axis in an XZ plane are arranged in the direction of the Y axis while adjacent unit lamination structures are connected to each other, forming a lamination structure having the meander line structure in the directions of the Y-axis, and the plurality of lamination structures are arranged in the direction of the X-axis and adjacent lamination structures are connected to each other in the direction of the X-axis to have the meander line structure, and a T-shaped assistant antenna device formed at an upper or lower dielectric layer in the main antenna device.

Abstract: In a bi-directional optical transceiver module, a first waveguide transmits a optical signal received from a light source to a high reflection layer formed on a waveguide substrate. A second waveguide extends from the optical fiber to the high reflection layer. With a first mode coupling region formed by ends of the first and second waveguides near the high reflection layer, the second waveguide transmits the transmission optical signal mode-coupled from the first waveguide to the optical fiber and receives the reception optical signal from the optical fiber. A third waveguide extends from the optical detector to near an end of the optical fiber. With a second mode coupling region formed by an end of the third waveguide and the other end of the second waveguide, the third waveguide transmits the reception optical signal mode-coupled from the second waveguide to the optical detector.

Abstract: Magnetic RAM cells have split sub-digit lines surrounded by cladding layers and methods of fabricating the same are provided. The magnetic RAM cells include first and second sub-digit lines formed over a semiconductor substrate. Only a bottom surface and an outer sidewall of the first sub-digit line are covered with a first cladding layer pattern. In addition, only a bottom surface and an outer sidewall of the second sub-digit line are covered with a second cladding layer pattern. The outer sidewall of the first sub-digit line is located distal from the second sub-digit line and the outer sidewall of the second sub-digit line is located distal the first sub-digit line. Methods of fabricating the magnetic RAM cells are also provided.

Abstract: A bidirectional optical transceiver is disclosed. The transceiver comprises an optical fiber which is adapted to input/output optical signals and has a slant surface polished with an angle, a substrate having a groove formed on its upper portion to position the optical fiber therein, a wavelength distributor filter inserted into the substrate with a slant substantially matching the angle in the optical fiber, a photodiode positioned on the substrate to receive optical signals, a TO-Can having a laser diode that is positioned in a location opposite to the optical fiber to transmit optical signals, and a single housing adapted to mount the optical fiber, the substrate, and the TO-Can thereon.

Abstract: A bidirectional optical transmission/reception module includes a sub-mount and a plane optical device that is mounted on the sub-mount for transmitting and receiving an optical signal. The module includes an optical fiber for inputting the optical signal from and outputting the optical signal to the outside of the bi-directional optical transmission/reception module. A stub into which the optical fiber is mounted protrudes conically at one end adjacent to the device to point the fiber end toward and planarly in alignment with the device. A support member has a hole formed at its one upstanding side, and the hole is penetrated by the conical end of the stub.

Abstract: A memory device includes a memory cell configured to be coupled to complementary first and second bit lines and a differential amplifier having first and second input terminals and operative to amplify a voltage between the first and second input terminals to produce an output signal. First and second voltage-dependent capacitors are coupled to respective ones of the first and second input terminals, and first and second isolation switches are operative to couple and decouple the first and second bit lines to and from respective ones of the first and second voltage-dependent capacitors. The first and second isolation switches may include respective first and second isolation transistors (e.g., NMOS transistors), and the first and second voltage-dependent capacitors may include respective MOS capacitors.

Abstract: An optical receiver of a bidirectional optical communication module is fabricated through an assembling process in which multiple modules are assembled concurrently. The module includes a first substrate formed with a groove, an optical fiber located in the groove and having a flat surface, a reflective filter inserted between the first substrate and the fiber with a predetermined inclination angle in order to reflect an incident optical signal, a second substrate supporting the fiber and mounted on the first substrate such that the flat surface.

Abstract: Data sensing circuits for a magnetic memory cell include a current source circuit that selectively supplies a current to the magnetic memory cell. A first storage device selectively coupled to the magnetic memory cell stores a voltage representing a state of the magnetic memory cell. A second storage device selectively coupled to the magnetic memory cell stores a voltage representing a state of the magnetic memory cell. A differential voltage sense circuit coupled to the first and second storage device that is configured to generate a sensed data output signal for the magnetic memory cell responsive to sensing a difference between voltages stored in the first and second storage devices. A control circuit generates control signals to control the current source to supply current to the magnetic memory cell and to control the coupling of the first and second storage devices to the magnetic memory cell. Magnetic memories and methods are also provided.

Abstract: Methods and systems are provided for provisioning a network by identifying the classes of traffic to be transported in the network as well as the QoS criteria of the identified classes of traffic. By simulating the classes of traffic, one or more QoS mechanisms and their associated parameters may be determined. The statistical multiplexing gains of the classes of traffic may also be determined based on the simulation. Then, one or more resources in the network may be allocated based on the QoS mechanisms and parameters as well as the multiplexing gains.