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    • 1. 发明授权
    • Inking unit pre-adjustment method
    • 压片单位预调节方式
    • US4660470A
    • 1987-04-28
    • US663227
    • 1984-10-22
    • Jurgen KrampPeter SchrammGerhard AugsbergGerd Steiner
    • Jurgen KrampPeter SchrammGerhard AugsbergGerd Steiner
    • B41F31/02B41F31/00B41F31/04B41F31/14B41F33/00B41F31/10
    • B41F31/04B41F31/00B41F33/0027B41P2213/734B41P2233/11
    • As ink is conveyed through the inking unit of a printing machine, a state of equilibrium occurs which ensures adequate inking of the printing plate during continuous printing. The equilibrium state includes different ink gradients for the respective printing zones superimposed on a uniform base level. In order to achieve the state of equilibrium rapidly and easily at the start of printing, an ink distribution is produced in the inking unit before printing closely matching the state of equilibrium for continuous printing. An accurately defined ink film distribution is initially fed to the inking unit rollers via the vibrator. Preferably, when the ink applicator rollers are thrown off of the plate cylinder and the sheet feed is off, a predetermined amount of ink is introduced to the inking unit. The vibrator is then shut off and the base level of ink is allowed to become uniformly distributed. Next the ink profile is set at the ink metering elements and the vibrator is turned on. When the ink profile propagates to the applicator rollers, the applicator rollers are thrown on to the plate cylinder and the sheet feed is turned on.
    • 当墨水通过印刷机的着墨单元输送时,发生平衡状态,确保在连续印刷期间印刷板的充分着墨。 平衡状态包括叠加在均匀基底水平上的各印刷区域的不同油墨梯度。 为了在印刷开始时快速且容易地达到平衡状态,在印刷之前在着墨单元中产生与分配状态匹配以进行连续印刷的油墨分布。 首先通过振动器将准确定义的油墨分配物送入着墨单元辊。 优选地,当油墨涂布辊从印版滚筒抛出并且进纸被关闭时,预定量的墨水被引入到着墨单元。 然后关闭振动器,使墨水的基准水平均匀分布。 接下来,将墨水轮廓设置在墨水计量元件上并且振动器被打开。 当油墨轮廓传播到涂布辊时,涂布辊被扔到印版滚筒上并且片材进给被打开。
    • 3. 发明授权
    • Frequency correction for a multicarrier system
    • 多载波系统的频率校正
    • US07324599B2
    • 2008-01-29
    • US10751120
    • 2004-01-05
    • Georg FrankMathias PauliUdo WachsmannPeter Schramm
    • Georg FrankMathias PauliUdo WachsmannPeter Schramm
    • H04K1/10
    • H04L27/2657H04L27/2679
    • In order to correct frequency deviations of signals in a multicarrier system, such as a OFDM-system, the present invention provides a frequency tracker and a method to operate the same. The frequency tracker is based on a decision directed digital phase locked loop exhibiting a predictive character. On the basis of an estimated phase offset for a received signal (signal component, signal symbol) a predicted phase offset is calculated and applied to the signal (signal component, signal symbol). Further, received signals (signal components, signal symbols) are sampled and for each sample a sample phase offset to be corrected is calculated in dependence to the related estimated phase offset to incorporate the predictive character. In particular, the predicted sample phase offsets are calculated as a function of a corresponding predicted phase offset and a measure being indicative of a distance, in the time domain, between a corresponding phase reference point for the predicted phase offset and a phase reference point defined for a specific part of the received signal, preferably for a preceding preamble signal.
    • 为了校正诸如OFDM系统的多载波系统中的信号的频率偏差,本发明提供一种频率跟踪器及其操作方法。 频率跟踪器基于呈现预测字符的决策指向的数字锁相环。 基于接收信号(信号分量,信号符号)的估计相位偏移,计算预测相位偏移并将其施加到信号(信号分量,信号符号)。 此外,接收到的信号(信号分量,信号符号)被采样,并且对于每个采样,根据相关的估计相位偏移来计算要校正的采样相位偏移以并入预测字符。 特别地,预测的采样相位偏移作为相应的预测相位偏移的函数计算,并且指示在时域中在预测相位偏移的相应相位参考点和定义的相位参考点之间的距离的度量 对于接收信号的特定部分,优选地用于前一个前导信号。
    • 4. 发明授权
    • Cell selection in mobile radio systems
    • 移动无线电系统中的小区选择
    • US06542742B2
    • 2003-04-01
    • US09282205
    • 1999-03-31
    • Peter SchrammFrank MüllerHåkan Gunnar Olofsson
    • Peter SchrammFrank MüllerHåkan Gunnar Olofsson
    • H04Q720
    • H04W36/30H04W36/26H04W72/08
    • The present invention relates generally to the problem of cell selection, for e.g. cell handover, in mobile telecommunication systems, and more particularly to the problem of selecting the optimum cell among cells with differing capabilities due to different air interface modes. Known algorithms for cell selection and handover are extended by applying additional criteria that take into account the capabilities, due to different modulation and coding schemes, of the mobile station and the base stations that are possible candidates. The quality of service (“QoS”) is predicted for the different cell candidates based on a combination of signal strength or C/I, different cell capabilities, multislot capability, etc. Then the cell is selected for which the predicted QoS is maximum. In another embodiment the invention is extended by taking into account further criteria which are suitable from a system point of view, e.g. to avoid a significant increase of average outage probability or interference level. The present invention increases the use of base stations supporting high data rates. The result is an increase in overall system throughput.
    • 本发明一般涉及细胞选择的问题,例如, 移动电信系统中的小区切换,更具体地涉及由于不同的空中接口模式,在具有不同能力的小区中选择最佳小区的问题。 通过应用附加标准来扩展用于小区选择和切换的已知算法,该附加标准考虑到由于不同的调制和编码方案而导致的移动台和可能候选的基站的能力。 基于信号强度或C / I,不同小区能力,多时隙能力等的组合,为不同的小区候选者预测服务质量(“QoS”)。然后选择预测QoS最大的小区。 在另一个实施例中,本发明通过考虑从系统角度考虑的其它标准来进行扩展,例如, 以避免平均中断概率或干扰程度的显着增加。 本发明增加了支持高数据速率的基站的使用。 结果是整个系统吞吐量的增加。
    • 6. 发明授权
    • Equalizer with extended channel estimation for a receiver in a digital
transmission system
    • 对数字传输系统中的接收机进行扩展信道估计的均衡器
    • US6002716A
    • 1999-12-14
    • US952832
    • 1997-11-25
    • Raimund MeyerRobert FischerWolfgang GerstackerJohannes HuberPeter Schramm
    • Raimund MeyerRobert FischerWolfgang GerstackerJohannes HuberPeter Schramm
    • H04L27/01H04B1/76H04B7/005H04L12/28H04L25/02H03H7/30
    • H04L12/5692H04L25/0236
    • A digital transmission system comprising a receiver, the receiver including a receiver input stage and a digital memory for storing a sequence of binary symbols of sample values, formed in the receiver input stage, of a signal distorted by a transmission channel, and an equalizer for forming a sequence of binary estimates from the sample values by an impulse response of a substitute system describing the transmission channel, the impulse response being determined by first correlations of coefficients of a known training sequence with the sample values of a part of the known training sequence extended by at least one binary symbol. To make a channel estimation possible for a higher degree of the impulse response of the transmission channel, and also to carry out the channel estimation always with a maximum quality, a variable first correlation window size and a variable number of first correlations are used for adapting the impulse response of the substitute system to the impulse response of the transmission channel. A reduction of the correlation window size enables more cross-correlation values to be formed with one sequence of sample values, so that an increase of the degree of the impulse response of the estimated transmission channel becomes possible. With a more favorable transmission behavior, the correlation window size can be extended by one or more known binary symbols, so that the quality of the estimate of the impulse response is enhanced.
    • PCT No.PCT / IB97 / 00360 Sec。 371日期:1997年11月25日 102(e)1997年11月25日PCT PCT 1997年4月7日提交PCT公布。 第WO97 / 39536号公报 日期1997年10月23日一种数字传输系统,包括接收机,接收机包括接收机输入级和数字存储器,用于存储在接收机输入级中形成的采样值的二进制符号序列的由传输信道失真的信号 以及均衡器,用于通过描述传输信道的替代系统的脉冲响应从采样值形成二进制估计序列,所述脉冲响应由已知训练序列的系数的第一相关性与部分的样本值确定 已知训练序列由至少一个二进制符号扩展。 为了对传输信道的较高程度的脉冲响应进行信道估计,并且始终以最大质量执行信道估计,可以使用可变的第一相关窗口大小和可变数量的第一相关来适应 替代系统对传输信道的脉冲响应的脉冲响应。 相关窗口尺寸的减小使得能够用一个采样值序列形成更多的互相关值,使得估计的传输信道的脉冲响应程度的增加成为可能。 利用更有利的传输行为,可以通过一个或多个已知二进制符号来扩展相关窗口大小,从而提高脉冲响应的估计质量。
    • 7. 发明授权
    • Electronic, contactless switchgear
    • 电子式,非接触式开关柜
    • US4847570A
    • 1989-07-11
    • US114935
    • 1987-10-30
    • Peter Schramm
    • Peter Schramm
    • G01V3/10H03K17/95
    • H03K17/9535
    • An externally modulated oscillator (10), a switch amplifier connected to the output side of the oscillator (10) and an electronic switch, for instance a transistor, thyristor or triac, controllable by the oscillator (10) via the switch amplifier is shown and described, the oscillator (10) having a oscillator amplifier (15) and a feedback (16). The invention is capable of detecting ferromagnetic modulating elements through paramagnetic material, in that a second feedback (17) is provided, the second feedback (17) has two externally modulatable coils (18, 19) connected in series in opposite directions, the series circuit of the two coils (18, 19) is located in the output circuit of the oscillator amplifier (15) and the junction point of the two coils (18, 19) is connected to the input (21) of the oscillator amplifier (15).
    • 示出外部调制振荡器(10),连接到振荡器(10)的输出侧的开关放大器和经由开关放大器可由振荡器(10)控制的电子开关,例如晶体管,晶闸管或三端双向可控硅开关,并且 描述了具有振荡器放大器(15)和反馈(16)的振荡器(10)。 本发明能够通过顺磁材料检测铁磁调制元件,因为提供了第二反馈(17),第二反馈(17)具有两个沿相反方向串联连接的外部可调制线圈(18,19),串联电路 两个线圈(18,19)位于振荡器放大器(15)的输出电路中,并且两个线圈(18,19)的连接点连接到振荡器放大器(15)的输入端(21) 。
    • 8. 发明授权
    • Densitometric sensing device for use in printing presses
    • 用于印刷机的密度感测装置
    • US4806002A
    • 1989-02-21
    • US96859
    • 1987-09-14
    • Claus SimethPeter Schramm
    • Claus SimethPeter Schramm
    • B41F31/02B41F33/00B41F33/14G01N21/47
    • B41F33/0036
    • A densitometric sensing device in which a density measuring head, which is part of the device, traverses an ink test strip printed on a page which is fed to or placed on the device. The problem of misalignment between the thus-placed ink test strip and the scanning direction of the density measuring head is avoided by providing a plurality of density measuring receivers in the measuring head, mounted transverse to the direction of travel so that the ink test strip is always under some of the receivers. The measured density values of all of the receivers are passed to a comparison circuit which cooperates with a logic circuit to determine from the values of the signals themselves which should be used to produce a composite density value, which is then used as the density for the zone being scanned.
    • 密度测量传感装置,其中作为装置的一部分的密度测量头穿过打印在被馈送到或放置在装置上的页面上的油墨测试条。 通过在测量头中设置多个密​​度测量接收器,横向于行进方向安装墨水测试条,以避免这样放置的墨水测试条与密度测量头的扫描方向之间的未对准的问题。 总是在一些接收器下面。 所有接收机的测量密度值被传递到与逻辑电路配合的比较电路,以根据信号本身的值确定应该用于产生复合密度值,然后将其用作密度 正在扫描的区域。