摘要:
A data combination circuit device includes an unfixed data shift register for shifting and outputting unfixed data, fixed data shift register for shifting and outputting fixed data independent of the unfixed data shift register, a timing signal generator for generating timing signals for causing the unfixed and fixed data shift registers to selectively shift and output data held therein in accordance with the format of slot data to be transmitted, and a buffer register additionally arranged for the fixed data shift register and designed to store fixed data formed by a CPU such that the data can be repeatedly output.
摘要:
A mobile radio communication apparatus includes a switch which outputs a strength of a received radio frequency signal or a power strength of a radio frequency signal in accordance with an input of a switch control signal supplied from a switch control circuit. The switch control signal is supplied during a transmission time slot allotted to the mobile radio communication apparatus by the base station so that the switch outputs the power strength of the radio frequency signals in the same period of the transmission time slot and the strength of a received radio frequency signals in the same period of an other time slot. The strength of the received radio frequency signals and the power strength of the radio frequency signals are supplied to an analog-to-digital converter which converts the applied signal into a digital signal and supplies the digitalized signal to a level detector. The level detector detects a level of the strength of the radio frequency signals and a level of the power strength of the radio frequency signals which are used for monitoring condition of a transmission and a reception of the radio communication apparatus.
摘要:
Disclosed is a semiconductor-encapsulating epoxy resin composition comprising (A) an epoxy resin. (B) a curing agent, and (C) fused silica which has been surface-treated with a silane coupling agent having a secondary amino group. This composition has a good moldability and reliability, and a good solder dipping stability.
摘要:
A mobile radio communication system includes a plurality of base stations connected to a network through wire lines, and a plurality of mobile stations connected to the base stations through radio channels. The base and mobile stations share a plurality of radio frequencies and transmit at least one transmission signal at one of the shared radio frequencies. The transmission signal is arranged into time frames each having a plurality of time-division multiplexed slots. The base and mobile stations both include a control circuit having means for detecting unused time slots within the transmission signal and means for selecting one of the unused time slots. A radio channel establishing circuit establishes a channel between the mobile radio communication apparatus and the base station in accordance with the selected time slot.
摘要:
A mobile radio communication system is provided with a base station apparatus connected to a wire circuit, a mobile radio station apparatus which is connected to the base station apparatus by a radio circuit, a mode designation device for selecting either an analog mode or a digital mode when radio communication is to be performed between the base station apparatus and the mobile radio station apparatus, and a mode-informing device for informing the base station apparatus of the mode designated by the mode designation device.
摘要:
In a digital communication apparatus, when a slot is received by a transmission system, two different data included in the received slot are stored in two data storage circuits, respectively, by a predetermined amount, and are read out therefrom at different times, that is, time-divisionally. An error in the data having different transfer formats read out from the two data storage circuits is detected by a CRC data decoder formed of a single circuit based on a detection code such as CRC (cyclic redundancy check) code.
摘要:
A radio telephone system which comprises a base unit connected to a wired telephone line and a radio telephone set connected to the base unit through a radio link and which has an automatic re-calling function of automatically calling a party telephone set at intervals of a predetermined time when the parts telephone set is in a speech mode. This automatic re-calling operation is carried out only in the base unit under the released condition of the radio link between the base unit and the radio telephone set, and after the base unit confirms a response from the party telephone set, the radio link is established between the radio telephone set and the base unit.
摘要:
A power transmission belt having longitudinally spaced pairs of blocks on the opposite surfaces of a neutral belt portion thereof. The blocks are formed of hard synthetic resin materials having fibers distributed therein. The fibers may be provided in the form of distributed short fibers, fabrics, and one or more different types of fibers may be utilized in the respective blocks. The fibers include carbon fibers, aramid fibers, and silicon carbide fibers. The neutral belt is provided with longitudinally spaced projections on the upper and lower surfaces thereof and the blocks are provided with complementary recesses receiving the projections. The recesses are preferably deeper than the height of the projections, whereby the distal surfaces of the blocks may be urged with high frictional engagement against the flat surfaces of the neutral belt. The blocks are resiliently clamped to the neutral belt and the clamping forces are urged through the neutral belt to the tensile cord carried therein for further improved stabilization of the blocks on the neutral belt.
摘要:
A fine gold alloy wire of high tensile strength for bonding semiconductor elements is disclosed. The wire consists essentially of 0.0003 to 0.010 wt % of at least one rare earth element selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu,Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc and Y, the balance being Au and incidental impurities. The wire does not present a deformed loop and has greater bond strength if it contains 0.0003 to 0.010 wt % of at least one rare earth element of the Cerium Group selected from the group consisting of La, Ce, Pr, Nd and Sm and 0.0001 to 0.0060 wt % of at least one element selected from among Ge, Be and Ca.
摘要:
A platen for use in thermal printer of a type designed to effect a printing with the use of at least one thermal print head for printing on a recording medium positioned between the platen and the thermal print head, which platen comprises a generally elongated elastic body having an exterior surface adapted to be brought into contact with the heating elements of the thermal print head assembly with at least the recording medium intervening therebetween, and a layer of porous material lined on the exterior surface of the elastic body and having a hardness greater than that of the elastic body and also having a thermal conductivity lower than that of the elastic body. The thermal conductivity and the porosity of the layer of porous material may be within the range of 0.05 to 0.10 Kcal/m.sup.2 .multidot.hr.multidot..degree.C. and within the range of 50 to 95%, respectively.
摘要翻译:一种用于热敏打印机的压板,其被设计成通过使用至少一个热打印头进行打印,用于在位于压板和热打印头之间的记录介质上进行打印,该压板包括大致细长的弹性体, 外表面,其适于与至少介于其间的记录介质与热敏打印头组件的加热元件接触;以及衬垫在弹性体外表面上的多孔材料层,其硬度大于 并且还具有低于弹性体的热导率的热导率。 多孔材料层的导热率和孔隙率分别可以在0.05〜0.10Kcal / m 2·x·hr·℃的范围内,在50〜95%的范围内。