摘要:
A chip stack package includes a substrate, a plurality of chips, a plurality of adhesive layers and a plug. The substrate has a wiring pattern and a seed layer formed on the wiring pattern. Each of the chips has an electrode pad and a first through-hole that penetrates the electrode pad. The chips are stacked such that the first through-holes are aligned on the seed layer of the substrate. The adhesive layers are interposed between the substrate and one of the chips, as well as between the chips. Each of the adhesive layers has a second through-hole connected to the first through-hole. The plug fills up the first through-holes and the second through-holes and electrically connects the electrode pads to the wiring pattern of the substrate. A cross-sectional area of the plug in the second through-holes may be larger than that of the plug in the first through-holes.
摘要:
Disclosed are an interworking system between IP networks using different IP address format, an application layer gateway (ALG) server, a network address translator, an interworking method, and a SIP message routing method. The interworking system between a local network using a private IP and a public network using a public IP includes a STUN server and an application layer gateway (ALG) server. The STUN server provides binding information of header information of a public IP binding request. The application layer gateway (ALG) server performs a public IP binding request with header information changed by IP masquerading, and performs routing by applying the received binding information to media receiving address information of a SIP message.
摘要:
There are provided an apparatus and method for traffic performance improvement and traffic security in an interactive satellite communication system. The method for traffic performance improvement of an interactive satellite communication system includes the steps of: a) storing an Internet protocol (IP) packet that is received from a user terminal connected to a satellite mobile terminal of the interactive satellite communication system and is to be transmitted to a central station through a satellite; b) transmitting acknowledgement for the stored IP packet to the user terminal by acting for the central station, before the stored IP packet is transmitted to the central station; and c) transmitting the stored IP packet through the satellite to the central station, and retransmitting an unacknowledged IP packet according to a retransmission request of the central station.
摘要:
The present invention relates to a content recommendation method in which pieces of information collected over an IP Multimedia Subsystem (IMS) network are analyzed through data mining, a semantic pattern is identified from the information and described based on ontology, the characteristics of content to be offered are recorded in ontology and language morphological pattern, and a recommendation filter in terms of various viewpoints and methods is operated in an integrated recommendation framework, thus enabling content recommendation suitable for various contexts to be performed.The method includes the steps of receiving user information, creating personal preference information based on the user information, deciding a recommendation strategy based on the preference information for content, combining recommendation functions using the recommendation strategy and the content information, personalizing recommendation results with respect to the combination, and providing the personalized content information.Furthermore, the method for recommending content with context awareness according to the present invention has an advantage in that it can offer more efficient and accurate content to mobile terminal users as a mobile communication network is expanded into an IMS basis and opened and therefore the types and number of content accessible by mobile terminals as well as mobile phones increase abruptly. Furthermore, the method for recommending content with context awareness according to the present invention is advantageous in that it can analogize the life pattern of a mobile terminal user, etc. based on the user's current context information and offers content matching the inferred life pattern at the right time and place.
摘要:
A watch phone and a method for handling an incoming call using the watch phone are provided. In the watch phone, a display device includes a touch screen panel and a display, turns off the touch screen panel in a watch mode, turns on the touch screen panel in an idle mode or upon receipt of an incoming call, and displays at least two areas for call connection and call rejection, upon receipt of the incoming call. A single mode selection key selects one of the watch mode and the idle mode. A controller performs control operations so that the touch screen panel is turned off in the watch mode and is turned on in the idle mode or upon receipt of the incoming call, and connects or rejects the incoming call, when the at least two areas for call connection or call rejection, which are displayed upon receipt of the incoming call, are pointed to or dragged to.
摘要:
Provided is a method for estimating carrier wave or doppler frequency offset based on an approximated quadratic non-linear function in fine search, and a receiver employing the method. The method for estimating frequency offset includes the steps of: a) extracting more than three discrete samples in an order where the discrete samples are close to a maximum value of a power spectrum density function; b) inducing a quadratic non-linear function by using the extracted discrete samples; and c) estimating the frequency offset from a maximum point of the quadratic non-linear function. The technology of the present research makes it possible to exactly estimate frequency offset without increasing hardware complexity in estimation of carrier wave or doppler frequency offset.
摘要:
There is provided a method for packet scheduling in a selective hybrid automatic repeat request (HARQ) including the steps of: increasing a priority of a receiver buffer after a packet is transmitted to the receiver; receiving a feedback packet for the transmitted packet and determining whether the feedback packet is an ACK packet or a NACK packet; lowering the priority of the receiver buffer if the feedback packet is an ACK packet; determining whether the feedback packet is a NACK packet for initial transmission or the feedback packet is a NACK packet for retransmission if the feedback packet is the NACK packet, increasing the priority of the receiver buffer if the feedback packet is the NACK packet for the initial transmission, and lowering the priority of the receiver buffer if the feedback packet is the NACK packet for retransmission; and scheduling packets after calculating a priority of each receiver buffer by performing the priority increasing step to the determining step for all of receivers.
摘要:
Provided is an apparatus for estimating phase offsets of multiple survival paths and a satellite communication system using the same. The apparatus includes: upper/lower decoding units for obtaining a phase offset estimation value and estimating phase offsets of each survival path based on a stored parameter estimation value of a previous state inputted from an external device; an interleaving/de-interleaving unit for minimizing correlation between data used to estimate a parameter according to the estimated phase offset value from the upper/lower decoding means; and a phase offset outputting unit for outputting the phase offset value estimated through the upper decoding unit and the de-interleaving unit.
摘要:
Provided is a voltage controlled oscillator having a new type of a resonator and a negative resistance part capable of finely tuning negative resistance. Thus, the voltage controlled oscillator has an excellent quality factor characteristic and can finely tune the negative resistance even after its fabrication is completed. The voltage controlled oscillator having an active element includes: a resonating unit for generating an oscillation frequency according to a resonance capacitance; a frequency tuning unit, connected to a source terminal of the active element, for tuning the oscillation frequency; and a negative resistance adjusting unit, connected to the frequency tuning unit, for generating a negative resistance to adjust the oscillation frequency, the negative resistance adjusting unit including a varactor diode for finely adjusting the negative resistance.
摘要:
A method of manufacturing a semiconductor device includes forming an integrated circuit region on a semiconductor wafer. A first metal layer pattern is formed over the integrated circuit region. A via hole is formed to extend through the first metal layer pattern and the integrated circuit region. A final metal layer pattern is formed over the first metal layer pattern and within the via hole. A plug is formed within the via hole. Thereafter, a passivation layer is formed to overlie the final metal layer pattern.