-
1.发明授权
公开(公告)号：US5819155A
公开(公告)日：1998-10-06
申请号：US749776
申请日：1996-11-20
申请人： David G. Worthy , Danny Lee Dubrall
发明人： David G. Worthy , Danny Lee Dubrall
CPC分类号： H04H60/44
摘要： A survey electronics package (32) of a survey system (10) includes a transmitter (36) and a receiver (38). The transmitter (36) transmits a survey signal which a radio (12) residing in a detection zone (14) receives and demodulates to generate an audio echo signal. The audio echo signal is magnetically radiated from a speaker (26) of the radio (12). The receiver (38) magnetically senses this magnetically radiated audio echo signal. A bandpass filter (48) in the receiver (38) and a correlation process (86) insure that only a valid audio echo signal is recorded. When the detection of a valid audio echo signal corresponds to a radio (12) tuned to a particular radio station, a record is made of the detection.
摘要翻译： 测量系统（10）的测量电子组件（32）包括发射器（36）和接收器（38）。 发射机（36）发射驻留在检测区域（14）中的无线电（12）接收并进行解调以产生音频回波信号的测量信号。 音频回波信号从无线电（12）的扬声器（26）磁辐射。 接收器（38）磁性地感测该磁辐射音频回波信号。 接收器（38）中的带通滤波器（48）和相关处理（86）确保仅记录有效的音频回波信号。 当检测到有效的音频回波信号对应于调谐到特定无线电台的无线电（12）时，记录检测。
-
2.发明授权
公开(公告)号：US5749043A
公开(公告)日：1998-05-05
申请号：US534508
申请日：1995-09-27
申请人： David G. Worthy
发明人： David G. Worthy
CPC分类号： H04H60/44 , H04N7/17354 , H04H20/57 , H04H60/66
摘要： A system for estimating listening audience characteristics in response to radio broadcast programming includes a central office, a plurality of remote survey sites, and a plurality of remote access sites. The survey sites collect survey data describing radio stations to which vehicle-mounted tuners are tuned. The survey data is downloaded to the central office, where the survey data is associated with a radio program broadcast by a radio station. The survey data and the radio program are presented at the remote access sites in a substantially synchronous format such that audience responses to specific radio programming can be observed.
摘要翻译： 用于响应于无线电广播节目来估计听众特征的系统包括中心局，多个远程测量站点和多个远程访问站点。 调查网站收集描述车载调谐器调谐的广播电台的调查数据。 调查数据被下载到中央办公室，其中调查数据与由无线电台广播的无线电节目相关联。 调查数据和无线电节目以基本上同步的格式呈现在远程访问站点，使得可以观察到对特定无线电节目的观众响应。
-
公开(公告)号：US5572450A
公开(公告)日：1996-11-05
申请号：US471416
申请日：1995-06-06
申请人： David G. Worthy
发明人： David G. Worthy
CPC分类号： H04H20/12 , G08G1/0104
摘要： A system and method for counting vehicles by detecting RF signals emitted from a portion of the vehicles is provided. An RF scanner/receiver located at a testing site is tuned to receive local oscillator (LO) signals that may be emitted from radio tuners located in a portion of the vehicles. A control unit controls the scanner/receiver, stores data related to the received LO signals, and performs other operating procedures. A central computer in data communication with the control unit performs data translation operations on the raw LO signal data. Scale factors derived from calibration formulas are applied to the system data to provide an estimated vehicle count and an estimated average vehicle speed. The central computer formats the resulting data for presentation to a user.
摘要翻译： 提供了一种通过检测从车辆的一部分发出的RF信号对车辆进行计数的系统和方法。 位于测试地点的RF扫描器/接收机被调谐以接收可能位于车辆的一部分中的无线电调谐器发射的本地振荡器（LO）信号。 控制单元控制扫描器/接收器，存储与接收到的LO信号相关的数据，并执行其他操作过程。 与控制单元进行数据通信的中央计算机对原始LO信号数据执行数据转换操作。 将从校准公式得到的比例因子应用于系统数据，以提供估计的车辆数量和估计的平均车辆速度。 中央计算机格式化结果数据以呈现给用户。
-
公开(公告)号：US6081690A
公开(公告)日：2000-06-27
申请号：US38267
申请日：1998-03-10
申请人： David G. Worthy
发明人： David G. Worthy
摘要： A bias compensating remote audience survey system (34) is configured to identify radio stations (162) to which tuners (24) are tuned. The tuners (24) have predetermined signals (26) emitted therefrom. The survey system (34) employs a method (152) of compensating for a station bias, or preference, toward or against one or more of radio stations (162). The method (152) includes measuring durations (62) over which the predetermined signals (26) are received by the survey system (34). The durations (62) are then combined by averaging to form a station average detection length (ADL) value (74) specific to one of the radio stations (162). The station ADL value (74) is compared to a multi-station ADL parameter (86). A sensitivity level (146) for the one radio stations (162) is adjusted in response to the comparison to compensate for station bias.
摘要翻译： 偏置补偿远程受众测量系统（34）被配置为识别调谐器（24）调谐到的无线电台（162）。 调谐器（24）具有从其发射的预定信号（26）。 调查系统（34）采用一种方法（152）来对一个或多个无线电站（162）补偿站偏差或偏好。 方法（152）包括测量由调查系统（34）接收预定信号（26）的持续时间（62）。 然后通过平均来组合持续时间（62），以形成一个无线电站（162）所特有的站平均检测长度（ADL）值（74）。 站ADL值（74）与多站ADL参数（86）进行比较。 响应于比较来调整一个无线电站（162）的灵敏度水平（146）以补偿站偏差。
-
5.发明授权
公开(公告)号：US5561835A
公开(公告)日：1996-10-01
申请号：US378746
申请日：1995-01-26
申请人： David G. Worthy
发明人： David G. Worthy
摘要： An antenna (26) projects a detection zone (28) across a non-intersection portion (16) of a road (10). A scanning receiver (32) couples to and is controlled by a data logging computer (34). This computer (34) commands the receiver (32) to look for one FM local oscillator (LO) signal (22) that may be emitted from within the detection zone (28). If one LO signal (22) is detected, other LO signals (22) that may be detected at the receiver are ignored until the one signal is no longer detectable (90-106). An attenuator allows LO signals 22 emitted from radios (20) in the detection zone (28) at noisy frequencies to have the same likelihood of being detected as LO signals 22 emitted at less noisy frequencies. Detected LO signals (22) are ignored if they are detected for less than a minimum duration (100) or if they are detected for greater than a maximum duration (118). The second of two consecutively detected LO signals (22) is ignored if it occurs within a minimum duration (112) from the previously detected LO signal (22) and exhibits the same frequency (114) as the previously detected LO signal (22). A compiling computer (36) accumulates the data logged by the data logging computer (34) into a spread sheet (134).
摘要翻译： 天线（26）跨越道路（10）的非交叉部分（16）突出检测区域（28）。 扫描接收器（32）耦合到数据记录计算机（34）并由数据记录计算机（34）控制。 该计算机（34）命令接收器（32）寻找可以在检测区域（28）内发射的一个FM本地振荡器（LO）信号（22）。 如果检测到一个LO信号（22），则在接收器处可能检测到的其它LO信号（22）被忽略，直到该信号不再可检测（90-106）为止。 衰减器允许在噪声频率下从检测区（28）中的无线电（20）发射的LO信号22具有被以较低噪声频率发射的LO信号22被检测的相同似然。 检测到的LO信号（22）如果被检测到小于最小持续时间（100）或者如果它们被检测到大于最大持续时间（118），则被忽略。 如果两个连续检测的LO信号（22）发生在从先前检测到的LO信号（22）的最小持续时间（112）内并且呈现与先前检测的LO信号（22）相同的频率（114），则两个连续检测的LO信号（22）中的第二个被忽略。 编译计算机（36）将由数据记录计算机（34）记录的数据累积到扩展表（134）中。
-
6.发明授权
公开(公告)号：US5410724A
公开(公告)日：1995-04-25
申请号：US16031
申请日：1993-02-10
申请人： David G. Worthy
发明人： David G. Worthy
摘要： An antenna (26) projects a detection zone (28) across a non-intersection portion (16) of a road (10). A scanning receiver (32) couples to and is controlled by a data logging computer (34). This computer (34) commands the receiver (32) to look for one FM local oscillator (LO) signal (22) that may be emitted from within the detection zone (28). If one LO signal (22) is detected, other LO signals (22) that may be detected at the receiver are ignored until the one signal is no longer detectable (90-106). An attenuator allows LO signals 22 emitted from radios (20) in the detection zone (28) at noisy frequencies to have the same likelihood of being detected as LO signals 22 emitted at less noisy frequencies. Detected LO signals (22) are ignored if they are detected for less than a minimum duration (100) or if they are detected for greater than a maximum duration (118). The second of two consecutively detected LO signals (22) is ignored if it occurs within a minimum duration (112) from the previously detected LO signal (22) and exhibits the same frequency (114) as the previously detected LO signal (22). A compiling computer (36) accumulates the data logged by the data logging computer (34) into a spread sheet (134).
摘要翻译： 天线（26）跨越道路（10）的非交叉部分（16）突出检测区域（28）。 扫描接收器（32）耦合到数据记录计算机（34）并由数据记录计算机（34）控制。 该计算机（34）命令接收器（32）寻找可以在检测区域（28）内发射的一个FM本地振荡器（LO）信号（22）。 如果检测到一个LO信号（22），则在接收器处可能检测到的其它LO信号（22）被忽略，直到该信号不再可检测（90-106）为止。 衰减器允许在噪声频率下从检测区（28）中的无线电（20）发射的LO信号22具有被以较低噪声频率发射的LO信号22被检测的相同似然。 检测到的LO信号（22）如果被检测到小于最小持续时间（100）或者如果它们被检测到大于最大持续时间（118），则被忽略。 如果两个连续检测的LO信号（22）发生在从先前检测到的LO信号（22）的最小持续时间（112）内并且呈现与先前检测的LO信号（22）相同的频率（114），则两个连续检测的LO信号（22）中的第二个被忽略。 编译计算机（36）将由数据记录计算机（34）记录的数据累积到扩展表（134）中。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.016 秒)
