摘要:
The invention provides a communication apparatus and method capable of carrying out communication at a low consumed electric power without setting a base station when communication is carried out between a plurality of communication terminals capable of carrying out wireless communication. The communication apparatus 11 transmits a beacon from a transmission function circuit 22 every time the beacon transmission request is generated. A data receivable period is provided after the beacon is transmitted. After the lapse of the receivable period, the supply of the electric power to the transmission and reception processing device 12 is suspended with the power source control circuit 27 to provide a sleep time. The data can be exchanged with reliability without setting the base station by means of a beacon. Addition, the supply of electric power is suspended so that the consumed electric power can be eliminated.
摘要:
A sewing machine including a head portion including a needle bar, the needle bar being for mounting a needle threaded with a needle thread; a principal shaft; a sewing machine motor for driving the needle bar via the principal shaft; a bed portion including a loop taker for taking a thread loop of the needle thread in cooperative operation with the needle; a loop taker drive shaft connected to move in association with the loop taker; a loop taker drive unit including a loop taker drive motor for driving the loop taker drive shaft independently of the principal shaft; a synchronization control unit for controlling at least one of the loop taker drive motor and the sewing machine drive motor so that the loop taker and the principal shaft rotate in synchronization; and an offset adjustment unit provided to the synchronization control unit and for adjusting an amount that the phase of the loop taker is offset from a reference phase offset amount preset for the loop taker with respect to the principal shaft.
摘要:
A sewing machine including a needle bar for mounting two needles separated by a distance in a principal shaft direction; a principal drive shaft for driving the needle bar and extending in the principal shaft direction; a bed portion; a first loop taker disposed in the bed portion; a transmission system for connecting movement between the first loop taker and the principal drive shaft; a loop taker module detachably provided to the bed portion; a second loop taker provided to the loop taker module; and servomotor provided in the loop taker module and for driving the second loop taker.
摘要:
A telephone set provided with a telephone ringer for producing a ringing sound, a telephone number storing device for storing a telephone number of a specific party in response to a registration operation performed by a user, a telephone number detecting device for detecting telephone number data input from a telephone line and a control device for controlling and causing the ringer to produce a ringing sound when a telephone number indicated by the telephone number detected by the telephone number detecting device matches the telephone number stored in the telephone number storing device. Thereby, when the specific party phones the user, the user can easily know this. For example, if the user is going to concentrate his mind upon his work, or if the user is immersed in his work at a distance from the telephone set, the user can readily know whether or not a caller is the specific party, the telephone number of which is registered in the telephone set. Consequently, the telephone set can prevent the user from making an unnecessary response to a call given by a calling party other than the specific party.
摘要:
In a common bus control method, transmission and reception buses are connected to a unit having a unit number 1. A synchronization frame head signal for time-division slots of common buses is sequentially supplied to the units in the order of the unit numbers 1 to n through delay circuits. Phase correcting circuits are respectively connected to the transmission and reception buses of each unit so as to perform phase correction of data on the buses and latch signals for latching the data. The delay circuit arranged in each unit sets transmission delay data having an inherent delay difference on the basis of the synchronization frame head signal. An output from the delay circuit of each unit is used as the latch signal.
摘要:
A package body for accommodating a semiconductor chip includes a plurality of inner-electrodes disposed on the package body and arranged in a multiplicity of rows around the semiconductor chip and outer-electrodes in the package body electrically connected to the corresponding inner-electrodes. The package body includes support sections disposed on the package body between the rows of inner-electrodes for supporting metal wires which connect the inner-electrodes to the electrodes of the semiconductor chip. A conductive layer for diminishing the floating capacitance between the metal wires may be included in the support sections.
摘要:
A semiconductor device having a light transparent window includes: a wall produced at an outer contour of a light receiving section on the surface of a semiconductor chip, the molding resin which is produced after a process of inserting the chip in a metal mold. The wall and the metal mold adhere with each other for producing a space between the chip and the metal mold so that a light transparent window is produced at a light introduction section in a separate position from the wall above the chip.
摘要:
The present invention relates to a white balance adjusting device for a color video camera for photographing an object irradiated by light from a blackbody radiation source or a non-blackbody radiation source. When recording operation is being performed, the white balance adjusting device prevents the moving operation of a fluorescent light correction filter and a color temperature conversion filter into an optical path of image pickup means and permits a white balance adjustment operation performed by electrically correcting an output of the image pickup means. When a recording operation is not being performed, the white balance adjusting device permits the moving operation of the fluorescent light correction filter and the color temperature conversion filter into the optical path and permits white balance adjustment operation performed by electrically correcting the output of the image pickup means.
摘要:
With an audiovisual information presentation system, pictorial image data, drawn on paper sheets in advance and to be optically projected on a screen using an optical projector, is sequentially sensed by a TV camea. Speech corresponding to the image data is input through a microphone. A data storage unit stores the image data and corresponding audio data together with code data for identifying pairs of image and audio data. When a search mode is designated, a desired pair of image and audio data is automatically searched from the data storage unit under the control of a CPU, and is reproduced by electrical monitor display units and a loudspeaker unit independent of image display on the projection screen.
摘要:
The present invention relates to the production of descaled animal fiber. The scale is effectively removed by oxidation of a surface of the animal fiber with an oxidizing reagent, following by treatment with a proteolytic enzyme in the presence of salt. The resulting animal fiber has excellent shrink-proof properties.