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1. 发明授权

US5079521A Fractional-N frequency synthesizer using delta-sigma modulator in divider control circuit 失效
标题翻译：在分路器控制电路中使用DELTA-SIGMA调制器的分数N频率合成器
公开(公告)号：US5079521A
公开(公告)日：1992-01-07
申请号：US616861
申请日：1990-11-21
申请人： Philip S. Gaskell , Nigel J. R. King , Eric Breakenridge , Michael J. Ball
发明人： Philip S. Gaskell , Nigel J. R. King , Eric Breakenridge , Michael J. Ball
IPC分类号： H03L7/197
CPC分类号： H03L7/1976
摘要： A fractional-N frequency synthesizer having a programmable divider and a control circuit therefor, wherein said control circuit incorporates a digital delta-sigma modulator operating as an interpolator.

2. 发明授权

US5278991A Handover techniques 失效
标题翻译：切换技术
公开(公告)号：US5278991A
公开(公告)日：1994-01-11
申请号：US655634
申请日：1991-02-14
申请人： Peter A. Ramsdale , Philip S. Gaskell
发明人： Peter A. Ramsdale , Philip S. Gaskell
IPC分类号： H04W36/04 , H04Q7/02 , H04Q9/02
CPC分类号： H04W36/04
摘要： In a cellular radio system having a two layer cell structure comprised by macrocells (1) overlaying microcells (2), handover occurs only via the macrocell layer. Thus when the quality of a call handled by a microcell (2) deteriorates below predetermined criteria the call is handed up rapidly to the umbrella macrocell and is only handed back down to a microcell when the handset has been in that microcell for a predetermined time and the quality of the link thereto exceeds predefined criteria.
摘要翻译：在具有由覆盖微小区（2）的宏小区（1）组成的两层小区结构的蜂窝无线电系统中，仅通过宏小区层进行切换。因此，当由微小区（2）处理的呼叫的质量恶化到低于预定标准时，呼叫被迅速地传递到伞形宏小区，并且当手机已经在该微小区中预定时间时才被递归回到微小区，并且其链接的质量超过预定标准。

3. 发明授权

US4591926A Technique for editing interleaved digital audio data 失效
标题翻译：编辑交错数字音频数据的技术
公开(公告)号：US4591926A
公开(公告)日：1986-05-27
申请号：US644203
申请日：1984-08-24
申请人： Philip S. Gaskell , Roger Lagadec , Guy W. W. McNally
发明人： Philip S. Gaskell , Roger Lagadec , Guy W. W. McNally
IPC分类号： G11B27/02 , G11B20/10 , G11B27/032 , G11B27/036 , G11B27/038 , G11B27/28
CPC分类号： G11B27/036 , G11B20/10527 , G11B27/28 , G11B2020/10592 , G11B2220/90 , G11B2220/913 , G11B27/032
摘要： In producing an edited tape (31) the lead-in material up to a first edit point is separated from the lead-out material running from a second edit point by a space containing unwanted material and accommodating the actual or notional splice. The unwanted material ensures correct operation of error protection for all of the wanted material on replay. The first and second edit points are marked by codes placed on the tape (31) by a code processor (43) and supplementary head (42). During replay the digital data recovered from the tape by a head (32) is entered into a random access buffer store (34) under control of a write address generator (38) and read out to output electronics (37) under control of a read address generator (39) running at the audio sampling rate. The write address generator (38) normally runs at a rate corresponding to tape speed but the code processor detects the codes for first and second edit points and a control unit (51) stops the write address generator (38) between such points so as to discard the unwanted material. The store is then replenished by speeding up the tape by a comparator (40) and speed control unit (10) in an arrangement which preserves a constant relationship between the read and write addresses, i.e. a constant degree of filling of the memory (34).
摘要翻译：在制作编辑的磁带（31）中，直到第一编辑点的导入材料与从第二编辑点运行的导出材料分开，所述导出材料包含不需要的材料并容纳实际或名义拼接。不需要的材料确保在重放时对所有想要的材料进行错误保护的正确操作。第一和第二编辑点由代码处理器（43）和辅助头（42）由放置在磁带（31）上的代码标记。在重放期间，通过头（32）从磁带恢复的数字数据在写地址生成器（38）的控制下被输入到随机存取缓冲存储器（34）中，并在读取的控制下读出到输出电子装置（37）地址发生器（39）以音频采样率运行。写地址生成器（38）通常以对应于磁带速度的速率运行，但是代码处理器检测用于第一和第二编辑点的代码，并且控制单元（51）在这些点之间停止写地址生成器（38），从而丢弃不需要的材料。然后通过比较器（40）和速度控制单元（10）通过加速磁带来补充存储器，该装置保持读取和写入地址之间的恒定关系，即存储器（34）的恒定填充程度，。

4. 发明授权

US5265263A Handover techniques 失效
标题翻译：切换技术
公开(公告)号：US5265263A
公开(公告)日：1993-11-23
申请号：US655635
申请日：1991-02-14
申请人： Peter A. Ramsdale , Philip S. Gaskell
发明人： Peter A. Ramsdale , Philip S. Gaskell
IPC分类号： H04W36/04 , H04W36/18 , H04B7/00 , H04Q7/02 , H04Q9/00
CPC分类号： H04W36/04 , H04W36/18
摘要： In a cellular radio system including a plurality of cells (e.g. cell sectors or micro cells) (4, 5, 8, 9, 10, 11) each normally using a respective channel for interference reduction purposes, a number of the cells are arranged in groups (6) and in the event of a cell associated with equipment moving within a group (6), all cells (4, 5, 8, 9, 10, 11) of that group use a common channel whereby to facilitate handover between them.
摘要翻译：在包括通常使用相应信道用于干扰减少目的的多个小区（例如，小区扇区或微小区）（4,5,8,9,10,11）的蜂窝无线电系统中，多个小区被布置在组（6），并且在与在组（6）内移动的设备相关联的小区的情况下，该组的所有小区（4,5,8,9,10,11）使用公共信道，以便于它们之间的切换。

5. 发明授权

US4620238A Method and apparatus for recording and replay of digital audio data 失效
标题翻译：用于记录和重放数字音频数据的方法和装置
公开(公告)号：US4620238A
公开(公告)日：1986-10-28
申请号：US644194
申请日：1984-08-24
申请人： Philip S. Gaskell , Roger Lagadec , Guy W. W. McNally
发明人： Philip S. Gaskell , Roger Lagadec , Guy W. W. McNally
IPC分类号： G11B5/09 , G11B15/52 , G11B20/10 , G11B20/22 , G11B27/00 , G11B27/032 , G11B27/10 , G11B27/13 , G11B5/00 , G11B15/46
CPC分类号： G11B20/10527 , G11B15/52 , G11B20/225 , G11B27/002 , G11B27/032 , G11B27/10 , G11B27/13 , G11B2220/90 , G11B2220/913
摘要： For both recording and replay, a digital audio tape (14) is accelerated very rapidly by a motor servo (9), motor (8) and capstan (7) so that the tape speed overshoots nominal speed range before settling back to this range in an oscillatory manner. The digital samples are recorded and replayed via a head (15), a random access memory (16) and input/output electronics (19). During recording, the store (17) is precharged by starting to write in as soon as acceleration is initiated. Read-out to the tape is initiated as soon as the tape first reaches the nominal speed range. Uniformity of samples as recorded on the tape is preserved by clocking a read address generator (21) at a rate proportional to tape speed, signaled by a tachometer (7). The write address generator is clocked at the constant sampling rate. For replay the write address generator is clocked at the tape speed rate while the read address generator (21) is clocked at the constant sample rate. Write in and read out are both initiated when the tape speed first reaches the nominal range. The addresses provided by the generators (20 and 21) are compared by a comparator (22) which provides a reference signal to the servo (9) in an arrangement such as to adjust the tape speed always in the sense to maintain a constant degree of filling of the store (17).
摘要翻译：对于记录和重放，数字音频磁带（14）通过电机伺服器（9），电动机（8）和主导轴（7）非常快速地加速，使得磁带速度超过标称速度范围，然后稳定回到该范围一种振荡的方式。数字样本通过头（15），随机存取存储器（16）和输入/输出电子（19）被记录和重放。在记录期间，一旦加速开始，存储器（17）就被预充电开始写入。一旦磁带首次达到标称速度范围，磁带的读出即被启动。记录在磁带上的样本的均匀性通过以读取地址生成器（21）以与速度成比例的速率（由转速计（7））发信号来保存。写地址发生器以恒定采样率计时。为了重播，写地址发生器以磁带速度速率计时，而读地址发生器（21）以恒定采样率计时。当磁带速度首次达到标称范围时，写入和读出都会启动。由发电机（20和21）提供的地址通过比较器（22）进行比较，比较器（22）以一种布置方式提供参考信号，以便在某种意义上总是调整磁带速度以保持恒定的程度商店的填充（17）。

6. 发明授权

US4562489A Apparatus for recording of digital data 失效
标题翻译：用于记录数字数据的装置
公开(公告)号：US4562489A
公开(公告)日：1985-12-31
申请号：US644182
申请日：1984-08-24
申请人： Philip S. Gaskell , Roger Lagadec , Guy W. McNally
发明人： Philip S. Gaskell , Roger Lagadec , Guy W. McNally
IPC分类号： G11B20/00 , G11B20/10 , G11B20/12 , G11B27/032 , G11B27/036 , G11B27/10 , G11B27/32 , G11B5/09 , G11B5/02
CPC分类号： G11B20/0021 , G11B20/00086 , G11B20/10527 , G11B20/1204 , G11B27/036 , G11B27/107 , G11B27/324 , G11B27/325 , G11B2020/10546 , G11B2220/20 , G11B2220/90 , G11B2220/913 , G11B27/032
摘要： A multitrack tape recorder records and replays digital data on a plurality of data tracks (15) by way of record/replay electronics (7), a record head (5) and a replay head (6). Channels (8) corresponding to the tape track (15) are provided for input to and output from the electronics (7). An additional channel (11) carries auxiliary data related to the signals in the channels (8). This data is formatted during recording by the electronics (7) into a block format compatible with the data format on channels (15) and is recorded on a separate dedicated track (16). The auxiliary information may be formatted in labels each of which has an instruction field and a parameter field. The labels can carry a wide variety of information relating to operation of the system. As one example, a label may contain in the instruction field an instruction to increase the playback gain by an amount contained in the parameter field.
摘要翻译：多轨磁带录像机通过记录/重放电子（7），记录头（5）和重放头（6）在多个数据轨道（15）上记录和重放数字数据。提供对应于磁带（15）的通道（8）用于输入和输出电子装置（7）。附加信道（11）携带与信道（8）中的信号有关的辅助数据。该数据在由电子设备（7）记录期间被格式化成与通道（15）上的数据格式兼容的块格式，并被记录在单独的专用轨道（16）上。辅助信息可以在标签中被格式化，每个标签具有指令字段和参数字段。标签可以携带与系统操作有关的各种信息。作为一个示例，标签可以在指令字段中包含用于将重放增益增加到包含在参数字段中的量的指令。

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