-
1.再颁专利Apparatus for recording a count signal in a fixed location regardless of transport velocity of record carrier 有权用于在固定位置记录计数信号而不考虑记录载体的传送速度的装置公开(公告)号：USRE37817E1
公开(公告)日：2002-08-13
申请号：US09624642
申请日：2000-07-25
IPC分类号： G11B509
CPC分类号： G11B15/03 , G11B15/1875 , G11B15/467 , G11B20/1208 , G11B27/024 , G11B27/029 , G11B27/032 , G11B27/036 , G11B27/3027 , G11B27/32 , G11B2220/90 , H04N5/78266 , H04N5/9206 , H04N9/7925
摘要： An arrangement for recording an information signal in a track (T0, T1, . . . ) on a record carrier (1), includes an input (20) for receiving the information signal, signal processing circuitry (21) for processing the information signal such that it can be recorded in the track, counting device (23) for counting and for generating an array of subsequent different count signals and for supplying the count signals to an output (24), recording apparatus (25, 26, 27) having at least one recording head (26) for recording the processed information signal in a track on the record carrier, and for recording the count signals in a track on the record carrier and a transport apparatus (34,35) for transporting the record carrier with a certain transport velocity (vt) in a longitudinal direction of the record carrier. The counting device (23) is adapted to supply count signals such that, independent of the value of the transport velocity during recording, a count signal is recorded in a substantially fixed location, viewed in the longitudinal direction of the record carrier, on said record carrier. Further, in the case that the arrangement is capable of recording a first video signal which is based on 25 pictures per second and of recording a second video signal which is based on 30 pictures per second, the following relation exists between the supply rate Fs of the subsequent different count signals by the count signal generator (23), and D, being the difference between subsequent different count signals generated: Fs×D=constant, for the recording of the first video signal as well as the second video signal, and where the transport velocity has been kept constant.
摘要翻译： 用于在记录载体（1）上的轨道（T0，T1，...）中记录信息信号的装置包括用于接收信息信号的输入端（20），用于处理信息信号的信号处理电路（21） 使得其可以记录在轨道计数装置（23）中，用于计数并产生后续不同计数信号的阵列，并用于将计数信号提供给输出（24），记录装置（25,26,27）具有 至少一个记录头（26），用于将处理的信息信号记录在记录载体上的轨道中，并用于将记录在记录载体上的轨道中的计数信号和用于传送记录载体的传送装置（34,35） 在记录载体的纵向方向上的一定的运送速度（vt）。 计数装置（23）适于提供计数信号，使得不依赖于记录期间的传送速度的值，将计数信号记录在从记录载体的纵向观察的基本上固定的位置上，在所述记录上 载体 此外，在该装置能够记录基于每秒25张图像的第一视频信号和记录基于每秒30张图像的第二视频信号的情况下，存在以下关系： 由计数信号发生器（23）后续的不同的计数信号，D是产生的后续不同计数信号之间的差值：用于记录第一视频信号以及第二视频信号，以及传输速度已经 保持不变
-
2.发明授权Direction identifier for recording of trick play signals on a record carrier 失效在记录载体上记录特技播放信号的方向标识符公开(公告)号：US06353701B1
公开(公告)日：2002-03-05
申请号：US09155723
申请日：1998-10-05
IPC分类号： H04N591
CPC分类号： G11B27/3027 , G11B5/0086 , G11B5/09 , G11B15/087 , G11B15/1875 , G11B15/4676 , G11B15/4677 , G11B20/1207 , G11B27/005 , G11B27/3063 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N9/8042 , H04N9/8227
摘要： A format for the recording of trick play signals in which trick play segments including sync blocks of information of a trick play signal are recorded in the tracks. At least first and second trick play signals are recorded on the record carrier. The first trick play signal is meant for reproduction in a reproduction apparatus at a reproduction speed n1 times the recording speed with which the trick play signals are recorded on the record carrier. The second trick play signal is meant for reproduction in the reproduction apparatus at a reproduction speed −n1 times the recording speed. Both trick play signals are recorded in the tracks such that, upon reproduction at the speed n1 times the recording speed, m1 sync blocks of information of the first trick play signal and, upon reproduction at the speed −n1 times the recording speed, m1 sync blocks of the second trick play signal are read from the record carrier during one revolution of the head drum in the reproduction apparatus. Further, a direction identifier is stored in the trick play sync blocks, indicating whether a trick play sync block is meant for a specific trick play speed in the forward or in the reverse direction.
摘要翻译： 用于记录特技播放信号的格式，其中包括特技播放信号的信息的同步块的特技播放段被记录在轨道中。 至少第一和第二特技播放信号被记录在记录载体上。 第一特技播放信号用于在再现装置中以以特技播放信号记录在记录载体上的记录速度n1的再现速度再现。 第二特技播放信号用于以再现速度-n1倍于记录速度在再现设备中进行再现。 两个特技播放信号被记录在轨道中，使得当以n1倍于记录速度的速度再现时，m1个第一特技播放信号的同步信息块，并且以再现速度-n1倍于记录速度m1同步 在再现装置中的磁头鼓的一圈旋转期间，从记录载体读取第二特技播放信号的块。 此外，方向标识符被存储在特技播放同步块中，指示特技播放同步块是针对正向还是相反方向的特定特技播放速度。
-
公开(公告)号：US4689577A
公开(公告)日：1987-08-25
申请号：US735901
申请日：1985-05-20
摘要： In an arrangement comprising a phase control circuit the phase comparator, when receiving input pulses with which the clock pulses are in phase, will produce an output signal having a pulse frequency which is twice the pulse frequency of the input pulses. The ripple on the control-voltage for the oscillator to be controlled resulting therefrom is compensated for by adding to the output signal of the phase detector a signal which is opposite in phase to the output signal. The result is that only frequency- and phase errors produce a ripple (change) on the output signal.
摘要翻译： 在包括相位控制电路的布置中，相位比较器在接收时钟脉冲同相的输入脉冲时将产生具有脉冲频率是输入脉冲的脉冲频率的两倍的输出信号。 通过向相位检测器的输出信号添加与输出信号相位相反的信号来补偿由其产生的要控制的振荡器的控制电压上的纹波。 结果是只有频率和相位误差在输出信号上产生纹波（变化）。
-
公开(公告)号：US4370619A
公开(公告)日：1983-01-25
申请号：US168841
申请日：1980-07-10
CPC分类号： H03D13/006 , H02P23/186
摘要： A phase comparison circuit for producing an output signal which is a measure of the phase difference between first (A) and second (B) pulse trains applied to respective first and second inputs thereof. The circuit is immune to the omission of a pulse from one of the trains and to pulse length inequality in the two trains. It comprises a logic circuit, two switchable current sources connected to a capacitor (17), a switchable constant voltage source, i.e. a controllable switch (18) connected to the capacitor, and a sampling circuit connected to the capacitor. The logic circuit generates four output signals that control the first current source, the second current source, the constant voltage source, and the sampling circuit respectively so that the charge on the capacitor is changed in a positive sense by the first current source when a pulse of the first train is present while a pulse of the second train is absent and in the other sense by the second current source when a pulse of the second train is present while a pulse of the first train is absent. The capacitor charge is restored to a reference value (zero) by the constant voltage source when pulses of both trains are absent simultaneously. The sampling circuit samples the capacitor voltage when pulses of both trains are present simultaneously.
摘要翻译： 一种用于产生输出信号的相位比较电路，该输出信号是施加到其相应的第一和第二输入的第一（A）和第二（B）脉冲串之间的相位差的量度。 该电路免受从列车中的一个脉冲的省略以及两列火车脉冲长度不平等的影响。 它包括逻辑电路，连接到电容器（17）的两个可切换电流源，连接到电容器的可切换恒定电压源，即可控开关（18）以及连接到电容器的采样电路。 逻辑电路分别产生四个输出信号，它们分别控制第一电流源，第二电流源，恒压源和采样电路，使得电容器上的电荷在第一电流源的正向上被改变，当脉冲 当第一列的脉冲不存在时，第二列的脉冲不存在，而在另一方面，当第二列的脉冲存在时，第二列的脉冲存在。 当两列火车的脉冲同时出现时，电容器电荷由恒定电压源恢复到参考值（零）。 当两列火车的脉冲同时存在时，采样电路对电容器电压进行采样。
-
5.发明授权Device for the generation of a control voltage across a piezo-electric positioning element 失效用于在压电定位元件上产生控制电压的装置
公开(公告)号：US4258282A
公开(公告)日：1981-03-24
申请号：US41022
申请日：1979-05-21
CPC分类号： G11B5/56 , G11B21/106 , G11B5/592 , G11B7/0937 , H01L41/042
摘要： A device for the generation of a control voltage across a piezo-electric positioning element. In order to enable a high voltage to be generated across the piezo-electric element without using a comparatively high supply voltage, use is made of the capacitance of such an element as an integrating element. The device comprises a current source and switches for transferring current pulses to and from the piezo-electric element on command of control pulses.
摘要翻译： 一种用于在压电定位元件上产生控制电压的装置。 为了在不使用较高的电源电压的情况下在压电元件两端产生高电压，可以使用作为积分元件的元件的电容。 该装置包括电流源和开关，用于根据控制脉冲的指令将电流脉冲传送到压电元件和从压电元件传递电流脉冲。
-
6.发明授权Trick play signal generation for a digital video recorder using retrieved intra-encoded pictures and generated inter-encoded pictures 失效使用检索到的帧内编码图像和生成的帧间编码图像的数字视频记录器的特技播放信号生成公开(公告)号：US06621979B1
公开(公告)日：2003-09-16
申请号：US09329394
申请日：1999-06-10
IPC分类号： H04N591
CPC分类号： H04N5/783 , H04N5/78263 , H04N9/8042 , H04N9/8227
摘要： A trick play information stream is generated from a normal play information stream, so that they can be recorded together as a composite information stream on the record carrier, such that upon reproduction in a trick play reproduction mode, an information signal of sufficient quality, e.g., as regards visibility, can be obtained. GOPs are generated, each GOP including an I-frame retrieved from the original normal play information stream, and one or more so-called ‘empty P frames’. Another aspect is the requirement of generating GOPs for the trick play information stream that have a constant bitcost per GOP. Again, another aspect lies in the retrieval of the I-frame for the trick play information stream from the normal play information. More specifically, an I-frame is generated by retrieving, from an I-frame included in the normal play information, the DC coefficient of the I-frame and a number of AC coefficients from that I frame, and generating the I-frame for the trick play information stream therefrom. More specifically, the number of AC coefficients for an I-frame of the trick play information signal depends on the difference between the DC coefficients of two subsequent I-frames in the normal play information from which the I-frame to be generated and the just previously generated I-frame for the trick play information signal have been derived.
摘要翻译： 从正常播放信息流生成特技播放信息流，使得它们可以作为复合信息流一起记录在记录载体上，使得在特技播放再现模式下再现时，具有足够质量的信息信号，例如 关于可视性，可以获得。 生成GOP，每个GOP包括从原始正常播放信息流检索的I帧，以及一个或多个所谓的“空P帧”。另一方面是产生具有 同样，另一方面在于从正常播放信息中检索特技播放信息流的I帧，更具体地说，通过从包含在该帧中的I帧中检索出I帧， 正常播放信息，I帧的DC系数和来自该I帧的AC系数的数量，并且从其产生用于特技播放信息流的I帧，更具体地说，I帧的AC系数的数量 特技播放信息信号取决于要生成的I帧的正常播放信息中的两个后续I帧的DC系数与用于特技pl的刚刚生成的I帧的两个DC系数之间的差异 已经导出了一个信息信号。
-
7.发明授权公开(公告)号：US06339673B1
公开(公告)日：2002-01-15
申请号：US09155722
申请日：1998-10-05
IPC分类号： H04N591
CPC分类号： G11B20/1208 , G11B5/0086 , G11B5/09 , G11B15/125 , G11B15/1875 , G11B15/4676 , G11B15/4677 , G11B27/005 , G11B27/3027 , G11B27/3063 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N9/8042 , H04N9/8227
摘要： A recording apparatus records an MPEG information signal and a trick play signal in tracks on a record carrier (1). The trick play signal is meant for reproduction in a corresponding reproduction apparatus at a record carrier trick play speed which is n1 times the nominal reproduction speed. Time stamps are added to the packets included in the trick play signal, and sync block numbers are added to the sync blocks including a packet, and the sync blocks are recorded at specific positions in the tracks. A specific algorithm is provided to determine those positions, dependent of the time stamps, and the sync block numbers given, such that upon reproduction at the trick play speed, the reproduction apparatus requires a buffer memory of a limited capacity.
摘要翻译： 记录装置在记录载体（1）上的轨道中记录MPEG信息信号和特技播放信号。 特技播放信号用于在对应的再现设备中以以标称再现速度的n1倍的记录载体特技播放速度再现。 将时间戳添加到包含在特技播放信号中的分组，并将同步块编号添加到包括分组的同步块中，同步块被记录在轨道中的特定位置。 提供具体的算法来确定取决于时间标记的那些位置和给定的同步块号，使得在以特技播放速度再现时，再现设备需要有限容量的缓冲存储器。
-
公开(公告)号：US06222981B1
公开(公告)日：2001-04-24
申请号：US09155748
申请日：1998-10-05
IPC分类号： H04N5783
CPC分类号： H04N5/783 , G11B5/0086 , G11B5/09 , G11B15/125 , G11B15/1875 , G11B15/4676 , G11B15/4677 , G11B20/1208 , G11B27/005 , G11B27/3027 , G11B27/3063 , G11B2220/90 , H04N5/78263 , H04N9/8042 , H04N9/8227
摘要： A format for the recording of trick play signals in which trick play segments, having sync blocks of information of a trick play signal, are recorded in groups of p successive tracks. At least first and second trick play signals are recorded on the record carrier. The first trick play signal is meant for reproduction in a reproduction apparatus at a reproduction speed n1 time the recording speed with which the trick play signals are recorded on the record carrier. The second trick play signal is meant for reproduction in the reproduction apparatus at a reproduction speed n2 times the recording speed. Both trick play signals are recorded such that upon reproduction at the speed n1 times the recording speed, m1 sync blocks of information of the first trick play signal and m1 sync blocks of the second trick play signal are read from the record carrier during one revolution of the head drum in the reproduction apparatus.
摘要翻译： 用于记录特技播放信号的格式，其中具有特技播放信号的信息的同步块的特技播放片段以p个连续音轨的组记录。 至少第一和第二特技播放信号被记录在记录载体上。 第一特技播放信号用于在再现速度n1的再现设备中再现特技播放信号记录在记录载体上的记录速度。 第二特技播放信号用于在再现设备中以再现速度n2倍的记录速度进行再现。 记录两个特技播放信号，使得在以记录速度n1倍的速度再现时，在旋转一周期间从记录载体读取m1个第一特技播放信号的信息块和第二特技播放信号的m1个同步块 再现装置中的磁头鼓。
-
公开(公告)号：US5745638A
公开(公告)日：1998-04-28
申请号：US673781
申请日：1996-06-20
IPC分类号： G11B5/027 , G11B5/008 , G11B5/53 , G11B27/029 , G11B27/032 , G11B27/036 , H04N5/7826 , H04N9/806 , H04N5/76
CPC分类号： H04N9/8063 , G11B27/032 , G11B27/036 , G11B5/0086 , G11B2220/90
摘要： An apparatus of the helical scan type for reproducing a digital video signal from slant tracks (T) on a record carrier, the digital video signal having been recorded in first track portions (TP1) of the tracks. In an edit mode, the digital video signal is reproduced from the first track portions and a corresponding digital audio signal is recorded in second track portions (TP2) of the tracks. The apparatus includes at least one read head (RH) for reading the digital video signal recorded in the first track portions of the tracks and at least one write head (WH) for writing the second channel signal in the second track portions. The read head (RH) and the write head (WH) are positioned on a rotatable head drum at such a location relative to each other that when the read head reads the digital video signal from a first track portion of a first track (T.sub.i+24), the write head writes the second channel signal in a second track portion in a second track (T.sub.i), the second track being spaced a specified number (24) of tracks away from the first track.
摘要翻译： 一种用于从记录载体上的斜轨（T）再现数字视频信号的螺旋扫描装置，该数字视频信号已被记录在轨道的第一轨道部分（TP1）中。 在编辑模式中，从第一轨道部分再现数字视频信号，并将对应的数字音频信号记录在轨道的第二轨道部分（TP2）中。 该装置包括用于读取记录在轨道的第一轨道部分中的数字视频信号的至少一个读取头（RH）和用于在第二轨道部分中写入第二通道信号的至少一个写入头（WH）。 读头（RH）和写头（WH）位于相对于彼此的这样的位置处的可旋转磁头鼓上，当读取头从第一磁道的第一磁道部分读取数字视频信号（Ti + 如图24所示），写入头将第二声道信号写入第二声道（Ti）中的第二声道部分，第二声道与第一声道相隔一定数量的（24）个音轨。
-
10.发明授权Method and apparatus for recording or reproducing stereophonic information in a magnetic record carrier 失效用于在磁记录载体中记录或再现立体声信息的方法和装置
公开(公告)号：US4498111A
公开(公告)日：1985-02-05
申请号：US401043
申请日：1982-07-22
CPC分类号： G11B20/00992
摘要： In accordance with a method of recording and/or reproducing stereophonic information in two adjacent tracks of a magnetic record carrier, an auxiliary signal whose frequency content is situated outside the frequency spectrum of the stereophonic information is recorded in the tracks and in the magnetic record-carrier area between the tracks during recording. During reproduction, the auxiliary signals read from the record carrier by the two transducers is used to control the gain of a pair of variable amplifiers so as to ensure that the amplitudes of the stereophonic information signals thus reproduced are independent of tracking errors.
摘要翻译： 根据在磁记录载体的两个相邻轨道中记录和/或再现立体声信息的方法，其频率内容位于立体声信息的频谱之外的辅助信号被记录在磁迹和磁记录载体中， 记录之间轨道之间的载体区域。 在再现期间，由两个换能器从记录载体读出的辅助信号用于控制一对可变放大器的增益，以便确保如此再现的立体声信息信号的幅度与跟踪误差无关。
-
-
-
-
-
-
-
-
-
搜索结果
43 条记录 (耗时 0.023 秒)