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1. 发明授权

US5844941A Parallel adaptive equalizer circuit 失效
标题翻译：并行自适应均衡电路
公开(公告)号：US5844941A
公开(公告)日：1998-12-01
申请号：US795450
申请日：1997-02-03
申请人： Michael P. Mack , Kenneth T. McBride
发明人： Michael P. Mack , Kenneth T. McBride
IPC分类号： H03H7/30
CPC分类号： H04L25/0268
摘要： An adaptive equalizer is configured to reconstruct electronic signals which are transmitted over signal cables, such as twisted pair cables. The equalizer satisfactorily reconstructs the signals over a broad range of cable lengths. Using the known degradation characteristics for a cable over a desired range of lengths, the adaptive equalizer includes multiple equalization paths, each of which are configured to reconstruct the input voltage signal optimized for a particular cable length. The degraded input signal is split according to a predetermined relationship into an appropriate two of the multiple equalization paths as controlled by a control logic circuit. Though each path is optimized to reconstruct the signal for a particular length of cable, the adaptive control adds a function of the actual cable length for more accurately reconstructing the signal. Each of the two active paths forms a partially reconstructed signal which is summed to form a composite reconstructed output signal. The control logic circuitry monitors the level of the output signal and adjusts a control signal appropriately in order to maintain the amplitude of the output signal in the required range. The control signal is used to determine the ratio of the input signal between the two active paths. A separate offset correction circuit also monitors the output signal for any offset and provides a correction signal to the input of the equalizer to compensate for the presence of any offset within the signal.
摘要翻译：自适应均衡器被配置为重建通过信号电缆（例如双绞线电缆）传输的电子信号。均衡器在宽范围的电缆长度上令人满意地重建信号。在所期望的长度范围内使用已知的电缆劣化特性，自适应均衡器包括多个均衡路径，每个均衡路径被配置为重建针对特定电缆长度优化的输入电压信号。劣化的输入信号根据预定的关系被分割成由控制逻辑电路控制的多个均衡路径中的适当的两个。虽然每个路径被优化以重建特定长度的电缆的信号，但是自适应控制增加了实际电缆长度的功能以更准确地重建信号。两个有效路径中的每一个形成部分重构的信号，其被相加以形成复合重建的输出信号。控制逻辑电路监视输出信号的电平并适当调整控制信号，以便将输出信号的幅度保持在所需范围内。控制信号用于确定两个有效路径之间的输入信号的比率。单独的偏移校正电路还监视输出信号以获得任何偏移，并且向均衡器的输入端提供校正信号，以补偿信号内任何偏移的存在。

2. 发明授权

US09911246B1 Systems and methods utilizing gravity feed for postage metering 有权
公开(公告)号：US09911246B1
公开(公告)日：2018-03-06
申请号：US12344080
申请日：2008-12-24
申请人： Kenneth T. McBride , J P Leon
发明人： Kenneth T. McBride , J P Leon
IPC分类号： G07B17/00
CPC分类号： G07B17/00467 , G07B17/00508 , G07B2017/0037 , G07B2017/00491 , G07B2017/00709
摘要： Systems and methods which utilize gravity feed for mail item movement in postage metering operations are shown. Embodiments provide for gravity drop feeding mail items into a portion of a postage metering system for metering operations, such as to activate or apply postage indicia thereto. Embodiments provide for gravity drop exit of mail items from a portion of a postage metering system after metering operations, such as activation or application of postage indicia thereto. Postage metering operations as performed by embodiments of the invention may comprise scanning and activation of preprinted tokens. Postage metering operations according to alternative embodiments of the invention may comprise printing postage indicia. Embodiments provide processing in addition to or in the alternative to the aforementioned postage indicia activation or printing and mail item marking operations, such as weighing, sorting, etc.

3. 发明授权

US09978185B1 Systems and methods for activation of postage indicia at point of sale 有权
公开(公告)号：US09978185B1
公开(公告)日：2018-05-22
申请号：US12103496
申请日：2008-04-15
申请人： James M. Bortnak , Kenneth T. McBride
发明人： James M. Bortnak , Kenneth T. McBride
IPC分类号： G07B17/00
CPC分类号： G07B17/00 , G07B17/00362 , G07B17/00508 , G07B2017/00201 , G07B2017/00225 , G07B2017/0037 , G07B2017/0058 , G07B2017/00709
摘要： Systems and methods which provide for activation of postage indicia at a point of sale are shown. In operation according to embodiments, unassigned (e.g., not yet activated or not yet representing postage value) tokens (e.g., IBI barcodes) suitable for later use as postage indicia are distributed to various point of sale locations, such as retail locations, consumer kiosks, vending machines, etc. and made available for purchase by users. Upon purchase, at a point of sale, such unassigned tokens are preferably activated as valid or “live” postage indicia. Thereafter, the postage indicia may be used to post mail items.

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