公开(公告)号：US5737025A

公开(公告)日：1998-04-07

申请号：US395789

申请日：1995-02-28

Applicant: Robert A. Dougherty ,  David A. Kiewit ,  Daozheng Lu ,  Henry B. Wheeler

Inventor： Robert A. Dougherty ,  David A. Kiewit ,  Daozheng Lu ,  Henry B. Wheeler

IPC: H04N7/025 ,  H04N7/08 ,  H04N7/081

CPC classification number: H04N7/025 ,  H04N7/08 ,  H04N7/081

Abstract: In the present invention, an ancillary code is added to a composite video signal in its active video portion. The ancillary code may be spread over several frequencies and summed at the output of a decoder to enhance the legibility of the ancillary code at the output of the decoder. Frequency-stepping may be used to add the ancillary code at ones of a plurality of selected frequencies within the bandwidth of the composite video signal. The ancillary code may be hierarchically apportioned between respective uniquely specified sequential segments corresponding to many distribution points of the composite television signal. This hierarchical ancillary code may be frequency-interleaved between harmonics of the horizontal sync frequency of the composite video signal. The ancillary code may be redundantly added above and below the roll-off frequency of a VCR.

Abstract translation: 在本发明中，在其有效视频部分中将复合视频信号附加辅助码。 辅助码可以分散在几个频率上，并在解码器的输出端相加，以增强解码器输出端的辅助码的可读性。 可以使用频率步进来将辅助码添加到复合视频信号的带宽内的多个选定频率中的一个。 辅助代码可以在与复合电视信号的许多分发点相对应的各个唯一指定的顺序段之间分层分配。 该分层辅助码可以在复合视频信号的水平同步频率的谐波之间进行频率交织。 可以在VCR的滚降频率之上和之下冗余地添加辅助代码。

公开(公告)号：US4930011A

公开(公告)日：1990-05-29

申请号：US227187

申请日：1988-08-02

Applicant: David A. Kiewit

Inventor： David A. Kiewit

IPC: G06K17/00 ,  G07C9/00 ,  G07C13/00 ,  H04H1/00 ,  H04H60/32 ,  H04H60/43 ,  H04H60/45

CPC classification number: G07C13/00 ,  G06K17/0022 ,  G07C9/00103 ,  G07C9/00111 ,  H04H60/45 ,  H04H60/32 ,  H04H60/43

Abstract: A method and apparatus are provided for identifying predetermined individual members of a television viewing audience/marketing group in a plurality of monitored areas. A plurality of predetermined identification signals are stored each corresponding to one of the predetermined individual members. A transmitter device for transmitting a unique predetermined identification signal is associated with each of the predetermined individual members. A receiver device in each of the plurality of monitored areas receives the transmitted predetermined identification signals and applies the received signals to an associated memory device used for storing the received individual member signals. A central processor periodically retrieves the stored individual member signals from each memory device. The received predetermined identification signals are compared with the stored predetermined identification signals to identify the predetermined individual members and further processed to correlate each of the identified individual members at different ones of the monitored areas.

Abstract translation: 提供了一种用于识别多个监视区域中的电视观看受众/营销组的预定个体成员的方法和装置。 存储多个预定的识别信号，每个预定的识别信号对应于预定的各个成员之一。 用于发送唯一的预定识别信号的发射机设备与每个预定的单个成员相关联。 多个监视区域中的每一个中的接收机设备接收所发送的预定识别信号，并将接收到的信号应用于用于存储接收到的各个成员信号的相关联的存储设备。 中央处理器周期性地从每个存储设备检索存储的各个成员信号。 将接收到的预定识别信号与所存储的预定识别信号进行比较，以识别预定的个体成员，并进一步处理以使被监测区域中不同的一个识别的个体成员相关联。

公开(公告)号：US4876736A

公开(公告)日：1989-10-24

申请号：US100198

申请日：1987-09-23

Applicant: David A. Kiewit

Inventor： David A. Kiewit

IPC: H03J1/00 ,  H04H1/00 ,  H04H60/43

CPC classification number: H03J1/0025 ,  H03J1/0016 ,  H04H60/43

Abstract: A method and apparatus are provided for determining the channel of a plurality of predetermined channels to which a remotely controlled receiver is tuned. A first transmitter device includes a keyboard for receiving viewer entered selections and transmits infrared or ultrasonic control signals for each of the viewer tuning and ON/OFF selections. A receiver device receives the transmitted control signal from the first transmitter and applies the received signal to a processor device that performs a stored program to identify the channel to which the monitored receiver is tuned. An associated memory device is used for storing the identified channel reception data. The processor device identifies the user selection and applies a corresponding second control signal to a second transmitter device. The second transmitted control signals have a predetermined format of the existing remote control receiver of the monitored receiver that is different than a predetermined format of the control signals of the first transmitter device.

公开(公告)号：US4644509A

公开(公告)日：1987-02-17

申请号：US821824

申请日：1986-01-23

Applicant: David A. Kiewit ,  Daozheng Lu

Inventor： David A. Kiewit ,  Daozheng Lu

IPC: G01S15/88 ,  H04H1/00 ,  H04H60/37 ,  H04H60/45 ,  H04H60/58 ,  H04H60/59

CPC classification number: H04H60/45 ,  G01S15/88 ,  H04H60/37 ,  H04H60/58 ,  H04H60/59 ,  H04N21/42201

Abstract: Method and apparatus for identifying a number of people in a monitored area wherein a first reflected ultrasonic wave map of the monitored area is collected that includes background objects. A second reflected ultrasonic wave map of the monitored area is collected when people may be present in the monitored area. The first collected background defining map is subtracted from the second collected map to obtain a resulting map. The resulting map is processed to identify clusters having a minimum intensity. A cluster size of the thus identified clusters is utilized to identify clusters corresponding to people. The ultrasonic detecting method and apparatus is utilized with a wave signal receiver for identifying an audience composition of the receiver and determining the viewing habits of the public.

Abstract translation: 用于识别被监视区域中的多个人的方法和装置，其中收集包括背景对象的被监视区域的第一反射超声波波形图。 当人们可能存在于受监视区域时，收集被监视区域的第二反射超声波波形图。 从第二个收集的地图中减去第一个收集的背景定义地图，以获得结果地图。 处理所得到的地图以识别具有最小强度的簇。 利用这样识别的簇的簇大小来识别与人相对应的簇。 超声波检测方法和装置与波信号接收机一起使用，用于识别接收机的观众组成并确定公众的观看习惯。

公开(公告)号：US4107626A

公开(公告)日：1978-08-15

申请号：US752291

申请日：1976-12-20

Applicant: David A. Kiewit

Inventor： David A. Kiewit

IPC: G01L1/00 ,  G01L1/16 ,  G01N3/06 ,  G10K11/36 ,  H03B5/32 ,  H03B21/00

CPC classification number: G10K11/36 ,  G01L1/165 ,  G01N3/06 ,  G01N2203/0623 ,  Y10S73/04

Abstract: A sensor developing a digital output in response to force induced deflection in which the deflection is of a beam formed to have, under stress, a surface undulate in both compression and tension. The signal is developed from piezoelectric transducers connected in a pair of oscillator circuits utilizing surface acoustic wave paths through, respectively, the tension and the compression portions of the beam surface. The frequencies of the oscillators are compared and the frequency difference resulting from beam deflection is sent as a signal to a counter to give a digital read out of the force causing the deflection. The beam is formed of steel and the piezoelectric surface for the surface waves and the interdigitated conductors forming the transducers are deposited by thin film techniques on the beam.

Abstract translation: 响应于力诱导的偏转而发展数字输出的传感器，其中偏转是形成为在应力下使表面在压缩和张力两者中波动的波束。 该信号由连接在一对振荡器电路中的压电传感器开发，该振荡器电路利用表面声波通路分别通过光束表面的张力和压缩部分。 将振荡器的频率进行比较，将由光束偏转产生的频差作为信号发送到计数器，以使数字读出导致偏转的力。 梁由钢制成，用于表面波的压电表面和形成换能器的交叉导体通过薄膜技术沉积在梁上。

公开(公告)号：US5662345A

公开(公告)日：1997-09-02

申请号：US520831

申请日：1995-08-29

Applicant: David A. Kiewit

Inventor： David A. Kiewit

IPC: A61G5/10 ,  B62M1/14 ,  B62D17/00

CPC classification number: A61G5/10 ,  A61G5/1054 ,  A61G5/1097

Abstract: The main wheels of a wheelchair are attached to the chair at a predetermined one of a plurality of camber angles differing by one or more predetermined angular measure(s). The apparatus comprises a bracket extending from the wheelchair's frame as well as a plurality of axle retainers disposed about and juxtaposed along the stub axle, the retainers used to mount the axle in the bracket. Switching from a first of two predetermined camber angles to the second requires removing the axle and retainers from the bracket, translating the axle either inboard or outboard (i.e., either toward or away from the center of the chair) by a predetermined amount, and reattaching the wheel to the chair. The operation may also involve adjusting the length of one or more of the bracket legs. Switching between camber angles preferably does not affect the height of the chair's seat or the position of the top of the wheels relative to the user's shoulders.

Abstract translation: 轮椅的主轮以预定的一个或多个预定角度测量的多个外倾角中的预定的一个角度附接到椅子上。 该装置包括从轮椅框架延伸的托架以及沿着短轴布置并且并置设置的多个轴保持器，用于将轴安装在托架中的保持器。 从两个预定的外倾角中的第一个切换到第二个需要，从支架移除轴和固定器，将轴在内侧或外侧（即，朝向或远离椅子的中心）平移预定量，并重新连接 轮子到椅子上。 该操作还可以包括调整支架腿中的一个或多个的长度。 在外倾角之间的切换优选地不影响椅子座椅的高度或者相对于使用者的肩部的车轮顶部的位置。

公开(公告)号：US5331544A

公开(公告)日：1994-07-19

申请号：US872881

申请日：1992-04-23

Applicant: Daozheng Lu ,  David A. Kiewit ,  Jia Zhang

Inventor： Daozheng Lu ,  David A. Kiewit ,  Jia Zhang

IPC: G06Q30/02 ,  G06F15/21

CPC classification number: G06Q30/02 ,  G06Q30/0201

Abstract: A market research system and method are provided. A plurality of cooperating establishments are included in a market research test area. Each cooperating establishment is adapted for collecting and storing market research data. A computer system remotely located from the plurality of cooperating establishments stores market research data collected from the cooperating establishments. The collected market research data includes monitored retail sales transactions and captured video images of retail customers.

Abstract translation: 提供市场研究体系和方法。 多个合作机构包括在市场调查测试领域。 每个合作机构适用于收集和存储市场研究数据。 从多个合作机构远程定位的计算机系统存储从合作机构收集的市场研究数据。 收集的市场研究数据包括监控的零售销售交易和捕获零售客户的视频图像。

公开(公告)号：US5040409A

公开(公告)日：1991-08-20

申请号：US504387

申请日：1990-04-04

Applicant: David A. Kiewit

Inventor： David A. Kiewit

IPC: G01M3/24 ,  G08B21/18

CPC classification number: G01M3/24 ,  G08B21/18

Abstract: An acoustic sensor and associated electronic circuitry are used to determine when a catastrophic leak (as e.g. may be caused by a sprinkler nozzle being broken off a pipe) occurs in a sprinkling system. When a catastrophic leak is detected, an alarm signal is generated and a shutoff valve may be actuated in order to prevent loss of fluid and possible damage that can occur due to localized high flow of the fluid that is being sprayed. The acoustic sensor responds to a frequency range of acoustic signals that encompasses the generally low frequency signals generated by the relatively unconstrained flow of fluid through a pipe, as well as the higher frequency signals generated by flow of fluid through one or more nozzles. Electronic signal processing means are employed to form a ratio of the acoustic power in two different frequency regions and to generate an alarm signal when flow generates an excess of low frequency acoustic power.

Abstract translation: 声传感器和相关联的电子电路用于确定在喷洒系统中何时发生灾难性泄漏（例如可能由喷洒器喷嘴被管道分解）。 当检测到灾难性泄漏时，产生报警信号并且可以致动截止阀，以便防止流体的损失和由于被喷射的流体的局部高流量而可能发生的可能的损坏。 声学传感器响应声学信号的频率范围，该频率范围包含通过管道的相对不受限制的流体流产生的通常低频信号，以及由流体通过一个或多个喷嘴流动而产生的较高频率信号。 电子信号处理装置用于形成两个不同频率区域中的声功率的比值，并且当流量产生超过低频声功率时产生报警信号。

公开(公告)号：US4697209A

公开(公告)日：1987-09-29

申请号：US604367

申请日：1984-04-26

Applicant: David A. Kiewit ,  Daozheng Lu

Inventor： David A. Kiewit ,  Daozheng Lu

IPC: H04B1/06 ,  G06K9/00 ,  G11B27/28 ,  H04B1/16 ,  H04H60/37 ,  H04H60/59 ,  H04H9/00 ,  H04N17/04 ,  H04N17/06

CPC classification number: G06K9/00711 ,  G11B27/28 ,  H04H60/37 ,  H04H60/59 ,  G11B2220/90

Abstract: A method and apparatus for identifying programs such as television programs received from various sources detects the occurrence of predetermined events such as scene changes in a video signal and extracts a signature from the video signal. The signatures and the times of occurrence of the signatures are stored and subsequently compared with reference signatures to identify the program. The signatures may be compared in pairs to increase resolution, and the time interval between events or signatures may also be used to identify the program, either by themselves or in conjunction with the signatures.