Cordless telephone
    5.
    发明授权
    Cordless telephone 失效
    无绳电话

    公开(公告)号:US5915227A

    公开(公告)日:1999-06-22

    申请号:US119648

    申请日:1998-07-21

    CPC分类号: H04M1/72508 H04M1/72505

    摘要: A cordless telephone consisting of base and handset units is disclosed wherein a control circuit incorporated in the base unit comprises first and second D/A converters, first and second A/D converters, and first and second sync. signal generation circuits. The first and second D/A converters respectively convert digital signals from the handset unit and a PBX. The first and second A/D converters convert the analog signals provided from the first and second D/A converters to transmit them to the PBX and handset unit, respectively. The first sync. signal generation circuit regenerates a first clock signal synchronously with a sync. signal provided from the PBX to render the first A/D and second D/A converters to operate in synchronism with the sync. signal from the PBX. The second sync. signal generation circuit generates a second clock signal which is independent of the sync. signal from the PBX to render the first D/A and second A/D converters to operate in synchronism with the second clock signal. Accordingly, the synchronization between the base and handset units is effected independently of the synchronization signal from the PBX.

    摘要翻译: 公开了一种由基座和手机单元组成的无绳电话,其中并入基地单元中的控制电路包括第一和第二D / A转换器,第一和第二A / D转换器以及第一和第二同步。 信号发生电路。 第一和第二D / A转换器分别转换来自手机单元和集团电话的数字信号。 第一和第二A / D转换器将从第一和第二D / A转换器提供的模拟信号转换成分别将它们发送到PBX和手机单元。 第一次同步 信号发生电路与同步同步地再生第一时钟信号。 信号从PBX提供,以使第一A / D和第二D / A转换器与同步同步操作。 来自集团电话的信号。 第二次同步 信号发生电路产生独立于同步的第二时钟信号。 来自PBX的信号,以使第一D / A和第二A / D转换器与第二时钟信号同步地工作。 因此,基站和手持机单元之间的同步独立于来自PBX的同步信号来实现。

    Magnetic recorder/reproducer
    7.
    发明授权
    Magnetic recorder/reproducer 失效
    磁记录器/再现器

    公开(公告)号:US5353290A

    公开(公告)日:1994-10-04

    申请号:US83780

    申请日:1993-06-30

    IPC分类号: G11B20/10 G11B20/18 G11B5/09

    摘要: A magnetic recorder/reproducer converts two-channel analog signals into digital signals by a sample-and-hold/A-D converter circuit (3) and controls addresses in a memory circuit (4) by a memory address control circuit (5), to distribute the digital signals into odd sample groups and even sample groups per each channel for arraying the odd sample groups and the even sample groups of the same channel in alternate scanning intervals, thereby to write the same in the memory circuit so that the odd samples and the even samples of the same channel are arrayed in positions separated from each other along the direction of scanning by rotary heads (10, 11). The digital signals thus permutated are modulated by a modulation circuit (7), to be recorded in a magnetic tape by the rotary heads. The digital signals reproduced by the rotary heads are demodulated by a demodulation circuit (14), to be stored in a memory circuit (15). A memory address control circuit (16) controls addresses so as to permutate samples of the reproduced digital signals stored in the memory circuit to be in the original array thereof. The reproduced digital signals read from the memory circuit are converted into analog signals by a D-A converter (18), to be outputted through a low-pass filter (19).

    摘要翻译: 磁记录器/再现器通过采样保持/ AD转换器电路(3)将双通道模拟信号转换为数字信号,并通过存储器地址控制电路(5)控制存储器电路(4)中的地址,以分布 每个通道将数字信号转换成奇数采样组和均匀采样组,用于以交替的扫描间隔排列相同通道的奇数采样组和偶采样组,从而将其写入存储电路,以使奇数采样和 相同通道的均匀样品被排列在沿着旋转头(10,11)的扫描方向彼此分开的位置。 这样排列的数字信号由调制电路(7)调制,由旋转磁头记录在磁带中。 由旋转磁头重放的数字信号由解调电路(14)进行解调,存储在存储电路(15)中。 存储器地址控制电路(16)控制地址,以便将存储在存储器电路中的再现的数字信号的采样置换成其原始阵列。 从存储电路读出的再现的数字信号由D-A转换器(18)转换为模拟信号,通过低通滤波器(19)输出。

    4,6-o-hydroxyphosphoryl-glucosamine derivatives
    8.
    发明授权
    4,6-o-hydroxyphosphoryl-glucosamine derivatives 失效
    4,6-O-羟基磷酰基 - 葡糖胺衍生物

    公开(公告)号:US5278300A

    公开(公告)日:1994-01-11

    申请号:US778094

    申请日:1991-12-12

    CPC分类号: C07H11/04 C07H13/04 C07H13/06

    摘要: 4,6-O-hydroxyphosphoryl-glucosamine derivatives as shown in the following formula [I] and their pharmaceutically-acceptable salts: ##STR1## wherein R.sub.1 and R.sub.2 represent a hydrogen atom or a hydroxy group; one of R.sub.3 and R.sub.4 represents --OCO(CH.sub.2).sub.n CH.sub.3, --CH.sub.2 (CH.sub.2).sub.n CH.sub.3, or --O--CH.sub.2 (CH.sub.2).sub.n CH.sub.3, and the other represents a hydrogen atom; l is an integer of 4-16; m is an integer of 4-16; and n is an integer of 6-18.

    摘要翻译: PCT No.PCT / JP91 / 00475 Sec。 371日期1991年12月12日 102(e)日期1991年12月12日PCT 1991年4月11日提交PCT公布。 WO91 / 16332 PCT出版物 日本1991年10月31日4,4-O-羟基磷酰基 - 葡糖胺衍生物及其药学上可接受的盐:(*化学结构*)(I)其中R1和R2表示氢原子或 羟基; R 3和R 4中的一个表示-OCO(CH 2)n CH 3,-CH 2(CH 2)n CH 3或-O-CH 2(CH 2)n CH 3,另一个表示氢原子; l为4-16的整数; m为4-16的整数; n为6-18的整数。