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20 条记录 (耗时 0.017 秒)

    Tube and shell evaporator operable at near freezing
    1.
    发明授权
    Tube and shell evaporator operable at near freezing 有权
    管壳式蒸发器在近冷冻下可操作

    公开(公告)号：US06244058B1

    公开(公告)日：2001-06-12

    申请号：US09489203

    申请日：2000-01-21

    申请人： Joel S. Duga ,  Steven J. Pitts ,  John H. Roberts

    发明人： Joel S. Duga ,  Steven J. Pitts ,  John H. Roberts

    IPC分类号： F25D1700

    CPC分类号： F25D17/02 ,  F25B39/02 ,  F25B2339/0242 ,  F25D31/002

    摘要： A tube and shell evaporator operable at near freezing includes a temperature sensor that senses the temperature of chilled water discharging from one or just a few of the very coldest tubes, whereby the sensed temperature is less than the average leaving chiller water temperature (LCWT). The result provides an exceptionally low LCWT, which can be especially desirable in district cooling systems where the chilled water is usually piped a great distance.

    摘要翻译： 在近似冷冻下可操作的管壳式蒸发器包括温度传感器，其感测从一个或仅几个最冷管排出的冷冻水的温度，由此所检测的温度小于离开冷水机组水温度（LCWT）的平均温度。 结果提供了极低的LCWT，这在冷却水通常被管道距离很远的区域冷却系统中尤其可取。

    Circuit for providing visual indication of feedback
    5.
    发明授权
    Circuit for providing visual indication of feedback 失效
    提供反馈视觉指示的电路

    公开(公告)号：US5737428A

    公开(公告)日：1998-04-07

    申请号：US516776

    申请日：1995-08-18

    申请人： John H. Roberts

    发明人： John H. Roberts

    IPC分类号： H04R3/02 ,  H04R29/00 ,  H04S7/00

    CPC分类号： H04R3/02 ,  H04S7/30 ,  H04S7/40

    摘要： A compound differential circuit detects the highest relative signal of a plurality of input signals. Peak detector circuits including a sensing diode and a capacitor, are employed to produce a control signal. A switch receives the corresponding control signal. One switch is active at a time in response to the highest control signal. An LED connected to the activated switch is illuminated so that a visual indication of the highest input signal is displayed. In another embodiment, a feedback sensor for a graphic equalizer is disclosed.

    摘要翻译： 复合差分电路检测多个输入信号的最高相对信号。 使用包括感测二极管和电容器的峰值检测器电路来产生控制信号。 开关接收相应的控制信号。 响应于最高的控制信号，一个开关一次有效。 连接到激活的开关的LED被点亮，以便显示最高输入信号的视觉指示。 在另一个实施例中，公开了用于图形均衡器的反馈传感器。

    Bass clipping circuit
    6.
    发明授权
    Bass clipping circuit 失效
    低音削波电路

    公开(公告)号：US5509080A

    公开(公告)日：1996-04-16

    申请号：US208898

    申请日：1994-03-14

    申请人： John H. Roberts

    发明人： John H. Roberts

    IPC分类号： H03G5/04 ,  H03G11/02 ,  H04R5/04 ,  H03G5/00 ,  H04S3/00

    CPC分类号： H04R5/04 ,  H03G11/02 ,  H03G5/04

    摘要： A clipping circuit is coupled across the bass feedback shunt capacitor in an amplifier circuit to effectively reduce only high level bass signals while allowing level high frequencies to pass and allowing full boost to low level, low frequency signals.

    摘要翻译： 削波电路在放大器电路中的低音反馈并联电容器之间耦合，以有效地仅降低高电平低音信号，同时允许电平高频通过并允许将全部升压到低电平低频信号。

    Linear array level meter displaying multiple audio characteristics
    7.
    发明授权
    Linear array level meter displaying multiple audio characteristics 失效
    线性阵列电平表显示多种音频特性

    公开(公告)号：US5119426A

    公开(公告)日：1992-06-02

    申请号：US536410

    申请日：1990-06-07

    申请人： John H. Roberts

    发明人： John H. Roberts

    IPC分类号： G01R19/04

    CPC分类号： G01R19/04

    摘要： A linear display device provides a floating bar type of display for instantaneous peak values and instantaneous average values of an audio signal. Pairs of respective peak and average comparators are coupled to a source of fixed value bias voltages. The comparators produce outputs when the peak value and the average value of the audio signal exceeds the bias voltage. A logic circuit connected to outputs of each pair of comparators provides an output only when the bias voltage exceeds the instantaneous peak value.

    摘要翻译： 线性显示装置为瞬时峰值和音频信号的瞬时平均值提供浮动条型显示。 各个峰值和平均比较器的对耦合到固定值偏置电压源。 当峰值和音频信号的平均值超过偏置电压时，比较器产生输出。 连接到每对比较器的输出的逻辑电路仅在偏置电压超过瞬时峰值时提供输出。

    Heat sink alignment
    9.
    发明授权
    Heat sink alignment 失效
    散热器对齐

    公开(公告)号：US06515859B2

    公开(公告)日：2003-02-04

    申请号：US09877137

    申请日：2001-06-11

    申请人： John H. Roberts ,  Ronald David Goss ,  Jack C. Sondermeyer

    发明人： John H. Roberts ,  Ronald David Goss ,  Jack C. Sondermeyer

    IPC分类号： H05K720

    CPC分类号： H05K7/20163

    摘要： A heat sink alignment apparatus having an internal chamber with a plurality of heat sinks placed at an angled relationship to one another creating a tunnel through which air streams flows. At least one heat source is attached to a heat sink. A plurality of air streams enter the heat sink alignment apparatus through an ambient air intake and over a fan into the tunnel. The tunnel gradually narrows thereby increasing the velocity of the air streams which increases the cooling of the heat source. The narrowing shape of the tunnel creates turbulence within the plurality of air streams increasing the transfer of heat to various airstreams from the heat sink thereby lowering the temperature of the heat sources also.

    摘要翻译： 一种散热器对准装置，具有具有多个散热器的内部腔室，所述多个散热器彼此成角度地关系，形成空气流通过的隧道。 至少一个热源连接到散热器。 多个空气流通过环境空气进入散热器对准装置并通过风扇进入隧道。 隧道逐渐变窄，从而增加了气流的速度，从而增加了热源的冷却。 隧道的变窄形状在多个空气流中产生湍流，从而增加了热量从散热片传递到各种气流，从而也降低了热源的温度。

    Automatic mixer priority circuit
    10.
    发明授权
    Automatic mixer priority circuit 失效
    自动混频器优先电路

    公开(公告)号：US5652800A

    公开(公告)日：1997-07-29

    申请号：US556871

    申请日：1995-11-02

    申请人： John H. Roberts

    发明人： John H. Roberts

    IPC分类号： H03G3/30 ,  H03G3/32 ,  H04B1/00

    CPC分类号： H03G3/32 ,  H03G3/301

    摘要： A proportional, multichannel gain sharing audio circuit has a gain control in the computing leg so that additional weight may be accorded the channel so that the channel is allocated greater gain in proportion to the total amount of signal available to all of the channels combined. Weighting may be adjustable and more than one channel may have such a feature, so that a hierarchy of priority is possible.

    摘要翻译： 比例多通道增益共享音频电路在计算支路中具有增益控制，使得额外的权重可以被赋予信道，使得信道被分配更大的增益，该增益与组合的所有信道可用信号的总量成比例。 加权可以是可调节的，并且多于一个信道可以具有这样的特征，使得优先级别是可能的。