Abstract: This invention is directed to a method for manufacturing metal which includes a step of melting a forged material, and a step of casting a molten forged material to obtain a preform made of forged material, and a step of forging the preform made of forged material, and an apparatus therefor. The preform made of forged material comprises one or more of standardized preforms made of forged material having an approximately cylindrical form with the same cross sectional shape, but a different length. According to the present method and the present apparatus, one may produce metal products to which excellent mechanical properties are impaired by subjecting standardized preforms to the forging treatment with an improved productivity and reduced production cost.

Abstract: Coding section 205 recodes decoded data stored in decoded data storage section 204, data conversion section 206 converts data “0” and “1” output from coding section 205 to “1” and “−1” respectively, sum-of-product calculation section 207 multiplies the data output from data conversion section 206 by the demodulated data (soft decision value) stored in demodulated data storage section 201 and then calculates the sum of the products for 1 TTI and stores the sum-of-product result for each data rate, data rate decision section 208 decides the data rate corresponding to a maximum value of the sum-of-product results as the data rate of the demodulated data. This makes it possible to improve the accuracy of data rate decision and reduce decoding errors of a received signal.

Abstract: A small number of users who provide high interference in the other users, such as a user transmitting a high rate signal, are selected beforehand. First, a signal of the user is demodulated to generate a replica, and a difference between a received signal and the replica is calculated, thereby canceling the interference in signals of the other users, and further improving the system capacity.

Abstract: Signals subjected to orthogonal modulation with a plurality of carrier frequencies are added to detect peak power. Based on the peak power, a coefficient for suppressing an amplitude of a transmission baseband signal is calculated. Using the coefficient, the amplitude of a baseband signal to be inputted to a filter is suppressed. It is thereby possible to suppress the peak power assuredly, and by the effects of the filter, unnecessary frequencies are not generated.

Abstract: An aluminum casting forged product is provided by using an aluminum alloy for casting forge including a useless raw material for forging such as flash as a raw material and by controlling a weight percentage of an alloy element such as silicon, magnesium, copper, and manganese; the product having an enhanced fluidity, and an improved castability, with retaining a sufficient strength, preventing useless intermetallic compounds from forming, restraining deterioration due to oxidation and corrosion, and further improved strength by a forging effect: and there is also provided a simple manufacturing method, with a high yield and high productivity. An aluminum casting forged product of high tensile strength, high proof, and elongation, higher mechanical properties than those of the conventional casting forged product, high corrosion resistance, and high quality without defects, and being low in cost is also obtainable as a thick-wall aluminum product.

Abstract: A base station transmits, in addition to a pilot channel, signals which are multiplexed with pilot symbols inserted in the respective signals in communication channels. As the transmission of the pilot channel as a reference signal for coherent detection is unnecessary with high power so as to attain high reliability, the pilot channel can be transmitted with low power by means of weight in comparison with the communication channel, so that interference with the communication channel of any other station is reduced. Moreover, accurate coherent detection can be made from the pilot symbol inserted in the communication channel on the mobile station side.

Abstract: When carrying out CDMA/TDD-based data communications between a base station apparatus and mobile station apparatus, the base station apparatus and mobile station apparatus carry out VOX control turning ON/OFF transmission operation according to the presence/absence of transmission data and if transmission on the base station transmitting side is OFF the mobile station receiving side receives channels being sent all the time from the base station apparatus, performing open-loop transmission power control, and if transmission on the mobile station transmitting side is OFF the mobile station apparatus transmits dummy slots with small transmission power while the base station receiving side receives the dummy slots, performing transmission space diversity.

Abstract: Taking into account an optimal reception characteristic of a communication apparatus with variable directivity, the base station apparatus of the present invention has a communication apparatus with variable directivity positively accommodate a communication with a terminal in poor reception conditions, which makes it possible to reduce power of this terminal and reduce interference, thereby increasing the subscriber capacity in the system.

Abstract: A base station transmits, in addition to a pilot channel, signals which are multiplexed with pilot symbols inserted in the respective signals in communication channels. As the transmission of the pilot channel as a reference signal for coherent detection is unnecessary with high power so as to attain high reliability, the pilot channel can be transmitted with low power by means of weight in comparison with the communication channel, so that interference with the communication channel of any other station is reduced. Moreover, accurate coherent detection can be made from the pilot symbol inserted in the communication channel on the mobile station side.

Abstract: A data reception power measuring device 108 measures reception power of a data section. A TPC bit reception power measuring device 109 measures reception power of a forward TPC bit section. A pilot channel reception power measuring device 110 measures reception power of a pilot channel. A reception power measuring device 111 measures reception power where an amount corresponding to variation in transmission power is corrected by use of output signals from the data reception power measuring device 108, TPC bit reception power measuring device 109 and pilot channel reception power measuring device 110. A TPC bit generator 112 compares reception power output from the reception power measuring device 111 with a threshold, which is preset to satisfy a desired quality, whereby generating a reverse TPC bit, which instructs a base station to increase/decrease transmission power.

Abstract: In a correlation circuit 103, a correlation value is obtained by despreading processing of a reception signal. The above correlation value is sent to a cell detection circuit 104 and a cell monitoring circuit 105. The above results of cell detection and cell monitoring are sent to a cell management table 106 for classification and management of cells. A management circuit 107 changes the cycle for cell monitoring/cell detection according to various kinds of events, and, then, gives an instruction for cell detection and cell monitoring at the changed cycle to the cell detection circuit 104 and the cell monitoring circuit 105.

Abstract: Taking into account an optimal reception characteristic of a communication apparatus with variable directivity, the base station apparatus of the present invention has a communication apparatus with variable directivity positively accommodate a communication with a terminal in poor reception conditions, which makes it possible to reduce power of this terminal and reduce interference, thereby increasing the subscriber capacity in the system.

Abstract: An external storage device of a component cost estimation system stores various cost information representing a component material and its cost in association with each other, and a component manufacturing step and a cost involved in the step in association with each other. An information processing apparatus specifies a material of a component to be manufactured, and a plurality of manufacturing steps. Then, the information processing apparatus retrieves a cost of the specified material, and costs corresponding to the specified manufacturing steps from the cost information, and estimates a cost of the component based on the retrieved costs. The cost of the component is computed by adding up the cost of the material and the costs involved in all the manufacturing steps.

Abstract: A base station transmits, in addition to a pilot channel, signals which are multiplexed with pilot symbols inserted in the respective signals in communication channels. As the transmission of the pilot channel as a reference signal for coherent detection is unnecessary with high power so as to attain high reliability, the pilot channel can be transmitted with low power by means of weight in comparison with the communication channel, so that interference with the communication channel of any other station is reduced. Moreover, accurate coherent detection can be made from the pilot symbol inserted in the communication channel on the mobile station side.

Abstract: A method of stabilizing a useful protein by mixing a useful protein and an aqueous solution of a compound having the basic structure of arabic acid, and a stabilizied useful protein compositon containing a useful protein and a compound having the basic structure of arabic acid; gum arabic is preferred as a compound having the basic structure of arabic acid, and examples of a useful protein include cytokine and interferon; and a production method for canine interferon-&ggr; and stabilization thereof.

Abstract: This invention relates to base station control equipment, radio base station equipment and radio terminal equipment that together constitute a mobile communication system. These base station control equipment, radio base station equipment and radio terminal equipment of this invention update transmitting power of a radio channel allotted to a new visit-zone to a greater and suitable value in time sequence. Therefore, mobile communication system according to the invention can keep speech quality of a completed call and transmission quality at high levels, can improve the number of radio channels that can be formed in parallel in a common frequency band (system capacity) or an information content of information that can be transmitted in parallel with desired transmission quality, and can improve utilization efficiency of a radio frequency.

Abstract: A CDMA receiving apparatus which can perform coherent detection in multi-code transmission with high accuracy by using a pilot signal, and can be easily produced. The apparatus demodulates data multi-code-transmitted through a plurality of channels, wherein in each of the systems for demodulating reception signals of the respective channels, there are provided spread code generating units for generating spread codes allocated to the channels, spread code generating units for generating spread codes in which a pilot signal is spread, and despreading units for despreading the reception signal on the basis of the spread codes generated by those spread code generating means, so that the transmission condition of the line is estimated on the basis of the pilot signal extracted by despreading and coherent detection of the reception signals of the respective channels is corrected on the basis of the result of the estimation.

Abstract: A semiconductor device includes cell areas laid out along a periphery of the device. A plurality of transistors are formed in each cell area, and are separated into at least three transistor groups arranged in a direction perpendicular to a circumferential direction of the semiconductor device. Each transistor group is connected to a high-potential power supply or a low-potential power supply. The semiconductor device has at least one interconnection line common to both the transistor group connected to the high-potential power supply and the transistor group connected to the low-potential power supply. The interconnection line serves to connect those transistor groups to external pads.

Abstract: An adsorbent which comprises a zeolite containing Cs and/or Rb, said zeolite being characterized by that the ratio of [the number of moles of Cs and/or R in the zeolite] to [the number of moles of Al in the zeolite] is 0.1 or less. This adsorbent permits efficient separation of an isomer from a mixture of aromatic isomers.

Abstract: In addition to a structure of a conventional CDMA/TDD radio communication system, a base station includes a pilot signal generating circuit for generating a pilot signal that has a constant transmission power level and is known in mobile units and a pilot channel spreading circuit for transmitting the pilot signal to the mobile units through a transmission line. Each of the mobile units includes a pilot signal reception level measuring circuit for measuring reception power of the received pilot signal and a transmission power control circuit for controlling transmission power of a power amplification circuit based on the measured reception power of the received pilot signal.