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    • 5. 发明授权
    • Orthogonal frequency division multiple access message processing method and apparatus
    • 正交频分多址消息处理方法及装置
    • US07872961B2
    • 2011-01-18
    • US11427530
    • 2006-06-29
    • Xiaoyong YuXiangyang ChenJian J. Wu
    • Xiaoyong YuXiangyang ChenJian J. Wu
    • H04J11/00
    • H04L5/0007H04L27/2662H04L27/2675
    • A base station receives (201) OFDMA messages from a plurality of end user platforms that share all used tones within at least one OFDMA symbol. By one approach this base station then uses (202) a fixed starting time to select contiguous samples from received aggregate multi-user signals wherein the fixed starting time is offset from a reference time that comprises a time at which the base station expects to be receiving the signals from all end users. In combination with the time offset approach noted above or in lieu thereof the base station can process (204) selected contiguous samples using fast Fourier transform and then provide (205) phase rotation with respect to those processed samples. When applying phase rotation, by one approach a phase rotation can be applied (401) to the aggregate multi-user signal and, in addition, individual phase rotation can be applied (402) as determined on a user-by-user basis.
    • 基站从至少一个OFDMA符号中共享所有使用的音调的多个终端用户平台接收(201)OFDMA消息。 通过一种方法,该基站然后使用(202)固定的开始时间来从接收到的聚合多用户信号中选择连续样本,其中固定的开始时间偏离包括基站期望接收的时间的参考时间 来自所有终端用户的信号。 结合上述时间偏移方法或代替它,基站可以使用快速傅里叶变换来处理(204)选定的连续样本,然后提供(205)相对于那些处理样本的相位旋转。 当应用相位旋转时,通过一种方式,可以向聚合多用户信号施加相位旋转(401),并且另外可以在逐个用户的基础上确定单独的相位旋转(402)。
    • 6. 发明授权
    • Ventilating system and ventilating system control method
    • 通风系统和通风系统控制方法
    • US08905829B2
    • 2014-12-09
    • US12409768
    • 2009-03-24
    • Xiangyang Chen
    • Xiangyang Chen
    • F24F7/007F24F11/00
    • F24F11/0079F24F11/77F24F2110/40Y02B30/746
    • To provide a ventilating system and ventilating system control method capable of advancing energy conservation. A controller sets a static pressure setting value based on the airflow of the system as a whole, calculated from the airflow of venturi air valves of fume hoods that are operating, and controls the speed of rotation of a fan based on the static pressure setting value and the static pressure within a main duct. Doing so enables control of the speed of rotation of the fan to be performed while ensuring the airflow of the ventilating system, thus making it possible to prevent wasted motive force of the fan, even when the airflows of each of the venturi air valves are not identical and even when the changes in resistance of the branched duct system relative to the various changes in airflow are not identical, with the result that it is possible to advance energy conservation.
    • 提供能够推进节能的通风系统和通风系统控制方法。 控制器基于整个系统的气流,根据正在操作的通风柜的文丘里管空气阀的气流计算出静态压力设定值,并根据静压设定值控制风扇的转速 和主管道内的静压力。 这样做可以在确保通风系统的气流的同时控制要执行的风扇的旋转速度,从而即使当每个文丘里阀的气流不是时,也可以防止风扇的浪费的动力 相同,甚至当分支管道系统相对于各种气流变化的电阻变化不相同时,结果是可以提前节能。
    • 8. 发明申请
    • VENTILATING SYSTEM AND VENTILATING SYSTEM CONTROL METHOD
    • 通风系统和通风系统控制方法
    • US20090247064A1
    • 2009-10-01
    • US12409768
    • 2009-03-24
    • Xiangyang Chen
    • Xiangyang Chen
    • F24F11/04F24F7/007G05B15/00
    • F24F11/0079F24F11/77F24F2110/40Y02B30/746
    • To provide a ventilating system and ventilating system control method capable of advancing energy conservation. A controller sets a static pressure setting value based on the airflow of the system as a whole, calculated from the airflow of venturi air valves of fume hoods that are operating, and controls the speed of rotation of a fan based on the static pressure setting value and the static pressure within a main duct. Doing so enables control of the speed of rotation of the fan to be performed while ensuring the airflow of the ventilating system, thus making it possible to prevent wasted motive force of the fan, even when the airflows of each of the venturi air valves are not identical and even when the changes in resistance of the branched duct system relative to the various changes in airflow are not identical, with the result that it is possible to advance energy conservation.
    • 提供能够推进节能的通风系统和通风系统控制方法。 控制器基于整个系统的气流,根据正在操作的通风柜的文丘里管空气阀的气流计算出静态压力设定值,并根据静压设定值控制风扇的转速 和主管道内的静压力。 这样做可以在确保通风系统的气流的同时控制要执行的风扇的旋转速度,从而即使当每个文丘里阀的气流不是时,也可以防止风扇的浪费的动力 相同,甚至当分支管道系统相对于各种气流变化的电阻变化不相同时,结果是可以提前节能。