Sony Corporation

Nec Corporation

Tokyo Tanabe Company, Ltd.

Kabushiki Kaisha Toshiba

Mitsubishi Tanabe Pharma Corporation

Mitsubishi-Tokyo Pharmaceuticals, Inc.

Nobuyuki Yasuda

Kentaro Odaka

Nobuyuki Oka

Toshio Tamura

Hiroshi Eto

Tetpei Yokota

Satoshi Takahashi

Yoshio Watanabe

Kenji Ohsawa

Toshihiko Masuda

Kazunobu Ohkuri

Takao Ito

Yuji Ikegami

Yuji Nishitani

Akio Mishima

Hiroyuki Iizuka

Akira Iga

Akira Tsutsumi

Koichi Kazama

Masayuki Ohta

Nobuo Komatsu

Shinji Tsuchiya

Masaaki Ueki

Toshifumi Matsumoto

Hirohisa Amago

Hiroshi Toi

Kouichi Matsunaga

Atsushi Fukuzaki

Kouichi Kazama

Shin-ichi Kunii

Junji Suzuki

Muneyuki Haruki

Masaharu Higuchi

Hironori Mihono

Hiroshi Kumakura

Susumu Tsuchiya

Kozo Hiratsuka

Atsusi Hukuzaki

Tsuyoshi Kajita

Seimi Ishii

A novel production method for a phenylethanolamine compound of the following general formula (III): (wherein Rrepresents a hydrogen atom or a halogen atom; Rrepresents an alkyl group optionally substituted with an alkoxycarbonyl group); and a novel production intermediate for it.

Production method of phenylethanolamine compound, and its intermediate

A sampling frequency conversion apparatus which easily controls the phase difference (time difference) between the input data and the output data in converting the sampling frequency, includes a storage devicefor continuously writing the input data or the data obtained by over-sampling the input data and for continuously reading out the data written maintaining a predetermined address difference relative to the writable address, and an interpolation processing unitfor interpolating the data read-out from the storage deviceto obtain data of which the sampling frequency is converted. In converting the sampling frequency, an address difference between a writable address and a readable address in the storage deviceis optimized, the address difference being optimized without limitation for a predetermined period of time from the start of supplying the input data and, then, being optimized by imposing a predetermined limitation after the passage of the predetermined period of time.

Sampling frequency conversion apparatus

A resampling address generator updates period data in a resampling period address register when the periods of input and output clocks are not stable, and generates a read address by supplying the output of a register to an accumulative adder. When the periods of the input and output clocks are stable, and a command is internally or externally received, the resampling address generator stops updating of the period data in the register, and generates the read address by supplying the output of the register to the accumulative adder. When the updating of the period data in the register is stopped, and a phase difference detector finds that the phase difference between the write address and the read address is outside a predetermined allowable range, the data in the register is updated based on correction data, and the read address is generated by supplying the output of the register to the accumulative adder.

Resampling address generator

The present invention provides a method and an apparatus for cutting a plastic optical fiber having a cladding layer. The method includes a plurality of cutting steps for performing rough cutting under a rough cutting condition and finish cutting under a controlled cutting condition. With this method, since a load applied to an optical fiber upon cutting is reduced, degradation of transmission characteristics of the optical fiber after cutting can be reduced.

Apparatus and method for cutting plastic optical fiber

A connection device including a plug unit (P) which has a connector plug ( ) provided at an end portion of a signal cable and a receptacle unit (R) in which the plug unit (P) is inserted. The plug unit (P) has an unlocking member ( ) supported on an outer circumferential surface of the connector plug ( ) so as to be movable in the axial direction of the cable ( ) and has a knob portion ( ) mounted thereon. The receptacle unit (R), in which the plug unit (P) can be inserted and removed, has a lock member ( ) housed in the receptacle unit (R) and adapted for being engaged with the connector plug ( ) to lock the plug unit (P) and controlled by movement of the unlocking member ( ) in the axial direction of the cable ( ) via a cam portion ( ) ( ) provided on an outer circumferential surface of the unlocking member ( ), thus locking and unlocking the connector plug ( ) inserted in the receptacle unit (R).

Connector

The invention provides a high-density multilayer printed wiring board and a method for manufacturing a multilayer printed wiring board having high-density wiring that is formed easily. A method for manufacturing a multilayer printed wiring board formed by laminating a plurality of laminates comprises a step for forming a conduction hole on a laminate comprising an insulating board having both sides on which conductive films are formed, a step for electrically connecting between both sides of said laminate through the above-mentioned conduction hole and planarizing the surface, a step for patterning the above-mentioned conductive film desiredly and forming a projection member at a desired position of the above-mentioned conductive film, a step for laminating bonding members having a through hole to which the above-mentioned projection member is inserted, which is served for bonding between the above-mentioned laminates, and the above-mentioned laminates alternately with insertion of the above-mentioned projection member into the above-mentioned throughhole, and a step for press-molding the above-mentioned laminated laminates and bonding members with heating.

Method of manufacturing a multilayer printed wiring board

An optical fiber that transmits an optical signal is fixed to a plug, which connects to another apparatus, by causing an expanded part created by melting the tip of the optical fiber to flow into a fixing part provided in the plug. The expanded part is then solidified.

Connecting mechanism, optical signal cable, and optical communication cable production method

An integrated services digital network (ISDN) terminal adapter comprises: a terminal adapter board within a personal computer (PC), the terminal adapter (TA) board including a digital signal processor (DSP) for carrying out modulation-demodulation of a modem and data processing for ISDN and a dial access arrangement (DAA) utilizing DSP as a modem function; and a digital service unit (DSU) outside the PC, employing a plurality of analog port interfaces and a plurality of S/T interfaces, the analog port interface and the S/T interface being connected to the TA board and, in addition, performing interfacing with the U point of an ISDN circuit, where various functions of the DSU analog port interface re controlled by a tone generation function of the TA board through a telephony application interface (TAPI) between a communication application and an operating system (OS).

Integrated services digital network terminal adapter

In a caller telephone number storage system, when the polarity inversion detector detects the polarity inversion of the line , the timer controller starts measuring six seconds. When the short ringer detector detects a short ringing from the line supplied via the ring signal binary encoder , a short ringer detection signal is sent to the relay controller . When the relay controller receives the short ringer detection signal, the timer controller controls the line closure relay within six seconds to dc close the line . Thereafter, the data receiver sends the number display data to store it into the data storage means . At the same time, the data receiver sends reception completion signal to the timer controller . Thus, the timer is cleared.

Caller's telephone number storage apparatus, a personal computer, and a caller's telephone number storage method, and a storage medium

Plug for a cable

Phenylethanolamine compounds useful as .beta. 3 agonists, process for

A sampling frequency converting device. A memory unit stores an input signal D.sub.si having an input sampling frequency Fsi. An interpolation unit interpolates the readout signal from the storage unit. A sampling frequency ratio detection unit detects the current sampling frequency ratio R.sub.n between the input sampling frequency Fsi and the output sampling frequency F.sub.so and detects a new sampling frequency ratio R.sub.n NEW. based on the current sampling frequency ratio R.sub.n and a past detected value R.sub.n-1 preceding the current detected value by one detection period. A control unit having the sampling frequency detection unit controls the storage unit and the interpolating unit from the new sampling frequency ratio R.sub.n NEW. Since the present sampling frequency converting device is not susceptible to accumulation of re-sampling time address errors even if the sampling frequency ratio continues to be changed for a pre-set time duration, the capacity of the storage unit is not increased, while there is no necessity of restricting the speed or amount of change in the sampling frequency ratio.

Sampling frequency converting device and memory address control device

Process for producing indoline compounds and intermediates for the

A sampling frequency converting apparatus according to present invention is such an apparatus in which, when a first digital signal of a sampling frequency Fsi is converted into a second digital signal of an arbitrary sampling frequency Fso by using a digital filter, the ratio between the sampling frequency Fsi and the sampling frequency Fso is obtained and this input/output sampling frequency ratio is utilized as a control amount for the sampling frequency conversion. The sampling frequency converting apparatus includes a buffer memory for temporarily storing the first digital signal, an operating unit for performing an interpolation processing with respect to the input/output sampling frequency ratio at every regular time and a calculating unit which calculates a read address of the buffer memory on the basis of the input/output sampling frequency ratio interpolated by the operating unit.

Sampling frequency converting apparatus

A sampling frequency converting device. A memory unit stores an input signal D.sub.si having an input sampling frequency Fsi. An interpolation unit interpolates the readout signal from the storage unit. A sampling frequency ratio detection unit detects the current sampling frequency ratio R.sub.n between the input sampling frequency Fsi and the output sampling frequency F.sub.so and detects a new sampling frequency ratio R.sub.n NEW based on the current sampling frequency ratio R.sub.n and a past detected value R.sub.n-1 preceding the current detected value by one detection period. A control unit having the sampling frequency detection unit controls the storage unit and the interpolating unit from the new sampling frequency ratio R.sub.n NEW. Since the present sampling frequency converting device is not susceptible to accumulation of re-sampling time address errors even if the sampling frequency ratio continues to be changed for a pre-set time duration, the capacity of the storage unit is not increased, while there is no necessity of restricting the speed or amount of change in the sampling frequency ratio.

Growing community of inventors

Chiba, Japan

Nobuyuki Yasuda