公开(公告)号：US06510066B2

公开(公告)日：2003-01-21

申请号：US09822401

申请日：2001-03-30

申请人： Demetri Giannopoulos ,  Qiong Li ,  Nai-Chi Lee

发明人： Demetri Giannopoulos ,  Qiong Li ,  Nai-Chi Lee

IPC分类号： H02M324

CPC分类号： H02M3/33523 ,  H02M2001/0012 ,  H02M2001/0032 ,  H02M2001/009 ,  Y02B70/16

摘要： A switch mode power supply (SMPS) and method are provided. In particular, the present invention provides an SMPS in which data is encoded by manipulating voltage pulses on a primary side. The manipulated voltage pulses are then transferred over a transformer to a secondary side. Secondary side pulses generated in response to the primary side pulses are sensed and decoded by a detector. The present invention allows data to be transferred from the primary side to the secondary side without affecting output voltages.

摘要翻译： 提供开关电源（SMPS）和方法。 特别地，本发明提供一种SMPS，其中通过操纵初级侧的电压脉冲对数据进行编码。 然后将受控电压脉冲通过变压器传送到次级侧。 响应于初级侧脉冲而产生的次级侧脉冲由检测器检测和解码。 本发明允许数据从初级侧传送到次级侧而不影响输出电压。

公开(公告)号：US06674655B2

公开(公告)日：2004-01-06

申请号：US09752144

申请日：2000-12-29

申请人： Demetri Giannopoulos ,  Nai-Chi Lee ,  Qiong Li

发明人： Demetri Giannopoulos ,  Nai-Chi Lee ,  Qiong Li

IPC分类号： H02M3335

CPC分类号： H02M3/33507

摘要： A power supply comprising a flyback converter and a controller is disclosed. The flyback converter drives a load when electrically coupled to an alternating current power source. The controller controls a soft switching during each switching time period of the flyback converter. Upon an initial switching time period, the controller determines each acceptable switching frequency for the subsequent switching time periods and selects one of the acceptable switching frequencies for soft switching the flyback converter over one or more switching time periods during a constant load.

摘要翻译： 公开了一种包括反激转换器和控制器的电源。 电反馈转换器在电耦合到交流电源时驱动负载。 在回扫转换器的每个切换时间段期间，控制器控制软切换。 在初始切换时间段期间，控制器确定随后的切换时间段的每个可接受的切换频率，并且在恒定负载期间的一个或多个切换时间周期上选择可接受的切换频率中的一个用于软开关反激转换器。

公开(公告)号：US06421256B1

公开(公告)日：2002-07-16

申请号：US09888457

申请日：2001-06-25

申请人： Demetri Giannopoulos ,  Qiong Li

发明人： Demetri Giannopoulos ,  Qiong Li

IPC分类号： H02M3335

CPC分类号： H02M1/4258 ,  H02M1/12 ,  Y02B70/126 ,  Y02P80/112

摘要： A method for reducing harmonic distortions and switching losses in a power factor correction circuit of a quasi-resonant voltage converter, wherein using data derived from the sensing a voltage impressed on the switching device in the power converter, a multitude of event times can be calculated that will align the timings of the drive circuitry of the power converter to those of the natural resonance transitions of reactive elements of the converter. An over-sampling of the voltage impressed on the switching device voltage allows accurate sensing of a “zero-current” cross-over condition in an inductance of the converter.

摘要翻译： 一种用于减少准谐振电压转换器的功率因数校正电路中的谐波失真和开关损耗的方法，其中使用从感测电压转换器中的开关器件上感应到的电压得到的数据，可以计算多个事件时间 这将使功率转换器的驱动电路的定时与转换器的无功元件的自然谐振转换的定时一致。 对开关器件电压施加的电压的过采样允许精确地检测转换器的电感中的“零电流”交叉条件。

公开(公告)号：US20060164176A1

公开(公告)日：2006-07-27

申请号：US10559837

申请日：2004-06-08

申请人： Qiong Li ,  Demetri Giannopoulos

发明人： Qiong Li ,  Demetri Giannopoulos

IPC分类号： H03K3/03

CPC分类号： H03K3/0315 ,  H03K5/133 ,  H03K7/08 ,  H03K2005/00026 ,  H03K2005/00032 ,  H03L7/0812

摘要： A high resolution pulse width modulation (PWM) or voltage controlled output (DCO) generator is disclosed. The resolution is increased over that of the circuit clock by delaying the generated signal through a series of delays, all of which are controlled by a delay locked loop. The delays are a small fraction of the clock period, thus providing resolution greater than that of the circuit clock.

摘要翻译： 公开了一种高分辨率脉宽调制（PWM）或压控输出（DCO）发生器。 通过将生成的信号延迟一系列延迟，所有这些都由延迟锁定环控制，分辨率比电路时钟的分辨率增加。 延迟是时钟周期的一小部分，因此提供比电路时钟更大的分辨率。

公开(公告)号：US06674379B1

公开(公告)日：2004-01-06

申请号：US10261223

申请日：2002-09-30

申请人： Qiong Li ,  Demetri Giannopoulos

发明人： Qiong Li ,  Demetri Giannopoulos

IPC分类号： H03M100

CPC分类号： G05B21/02

摘要： A digital controller comprises two control paths each having an A/D converter. One of the two converters has a substantially higher sampling speed and lower resolution than the other. Thus, one is suitable to deal with the fast responses while the other is suitable to deal with the slow responses, and can replace high-speed high-resolution A/D converter which is high in both cost and power consumption.

摘要翻译： 数字控制器包括两个具有A / D转换器的控制路径。 两个转换器之一具有比另一个更高的采样速度和更低的分辨率。 因此，适合于应对快速响应，另一种适用于处理慢响应，并且可以代替成本和功耗高的高速高分辨率A / D转换器。

公开(公告)号：US11706262B2

公开(公告)日：2023-07-18

申请号：US17724614

申请日：2022-04-20

申请人： Qiong Li

发明人： Qiong Li

IPC分类号： H04L65/1069 ,  G06F3/04817 ,  G06F3/04847 ,  G06F3/0482 ,  G06F3/0488

CPC分类号： H04L65/1069 ,  G06F3/0482 ,  G06F3/04817 ,  G06F3/04847 ,  G06F3/0488

摘要： A communication system comprises a set of specialized backend servers 100 and groups of terminals (210, 220) connected through the Internet. Users of the communication system can make video calls and share text messages, images and video clips through the terminals (210, 220). The terminals in this system are organized into private terminal groups 200 of varying sizes. Each group has only one controller terminal 210 and one or more display terminals 220. Both types of terminals provide an easy-to-use graphic user interface for the user to access the communication services provided by the system. Communication and information sharing between any display terminals must be pre-authorized by their controllers. This communication system, while ensuring security and privacy, addresses the needs of caregiver groups that include caregiver professionals, family members and care receivers, to facilitate private conference calls, information sharing and caring activity coordination.

公开(公告)号：US20100299075A1

公开(公告)日：2010-11-25

申请号：US12777199

申请日：2010-05-10

申请人： Qiong Li ,  Scott Pardo ,  Stanley A. Telson

发明人： Qiong Li ,  Scott Pardo ,  Stanley A. Telson

IPC分类号： G06F15/00 ,  G01N33/48

CPC分类号： G16H50/20 ,  A61B5/14532

摘要： Embodiments provide methods and systems wherein analyte concentration readings taken over a first period of time are collected and processed to determine one or more analyte concentration averages. The methods include collecting samples with a measurement system (e.g., a Blood Glucose Meter) over a first period of time, dividing the first period of time into smaller time increments, and calculating an average analyte concentration based on first sub-averages obtained from each of the smaller time increments. Systems for carrying out the analyte concentration averages are described, as are other aspects.

摘要翻译： 实施方案提供了收集和处理在第一时间段内获取的分析物浓度读数以确定一种或多种分析物浓度平均值的方法和系统。 所述方法包括在第一时间段内收集具有测量系统（例如，血糖仪）的样品，将第一时间段分成更小的时间增量，并且基于从每个样品获得的第一次平均值计算平均分析物浓度 的较小的时间增量。 还描述了用于执行分析物浓度平均值的系统，以及其它方面。

公开(公告)号：US20060251167A1

公开(公告)日：2006-11-09

申请号：US10539698

申请日：2003-12-16

申请人： Mihaela Van Der Schaar ,  Qiong Li

发明人： Mihaela Van Der Schaar ,  Qiong Li

IPC分类号： H04N7/12

CPC分类号： H04L65/4084 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/80 ,  H04N21/23439 ,  H04N21/44029 ,  H04N21/44209 ,  H04N21/4621 ,  H04N21/6125 ,  H04N21/6581

摘要： A receiver-driven streaming method is provided. The method includes receiving an original coded video stream from a transmitter 102 at a receiver 104. An available bit rate is measured at the receiver 104. A request for a different coded video stream and a switching stream is sent from the receiver 104 to the transmitter 102 based on the available bit rate. The requested switching stream is received from the transmitter 102 at the receiver 104. The requested coded video stream is received from the transmitter 102 at the receiver 104. According to one embodiment, switching streams 132a-132f are stored separately from coded video streams 130a-130c, and each switching stream 132a-132f and coded video stream 130a-130c is stored in a separate track from each other. In this way, switching streams 132a-132f maybe generated offline. Also, the receiver 104 controls the streams provided by the transmitter 102 by requesting specific switching streams 132a-132f and coded video streams 130a-103c.

摘要翻译： 提供了一种接收机驱动的流传输方法。 该方法包括在接收机104处从发射机102接收原始编码视频流。在接收机104处测量可用比特率。对于不同编码视频流和切换流的请求从接收机104发送到发射机 102基于可用比特率。 所请求的切换流在接收机104处从发射机102接收。所请求的编码视频流在接收机104处从发射机102接收。根据一个实施例，切换流132a-132f与编码视频流 130a-130c，并且每个切换流132a-132f和编码视频流130a-130c彼此存储在单独的轨道中。 以这种方式，切换流132a-132f可以离线生成。 而且，接收机104通过请求特定的切换流132a-132f和编码的视频流130a-103c来控制由发射机102提供的流。

公开(公告)号：US20060165129A1

公开(公告)日：2006-07-27

申请号：US10538108

申请日：2003-12-10

申请人： Qiong Li ,  Mihaela Van Der Schaar

发明人： Qiong Li ,  Mihaela Van Der Schaar

IPC分类号： H04J3/06

CPC分类号： H04L47/2416 ,  H04L1/0014 ,  H04L1/0015 ,  H04L29/06027 ,  H04L47/10 ,  H04L47/25 ,  H04L47/28 ,  H04L65/608 ,  H04L65/80 ,  H04N21/26216 ,  H04N21/2662 ,  H04N21/6125 ,  H04N21/6437 ,  H04N21/64769

摘要： A so-called “Virtual Clock” with varying frequency is provided for used by a multimedia streaming server to adapt its transmission rate dynamically to changing network conditions. The “Virtual Clock” system and method of the present invention compensates for a potential limitation of the Internet Real-time Transmission Protocol (RTP), that stamps every packet it delivers with a timestamp and expects the server using this timestamp to schedule the transmission of this particular packet accordingly. Consequently, the transmission rate is pre-determined by the encoded multimedia content when RPT is used. Using the “Virtual Clock” of the present invention, the streaming server has a mechanism to overcome this RTP limitation and can conduct transmission rate adaptation in a way that can balance the bandwidth requirement of the content with the bandwidth availability of the network.

摘要翻译： 提供了具有不同频率的所谓“虚拟时钟”，供多媒体流服务器使用，以便将其传输速率动态地适应不断变化的网络条件。 本发明的“虚拟时钟”系统和方法补偿因特网实时传输协议（RTP）的潜在限制，因为它以每个分组的形式对其进行标记，并且期望使用该时间戳的服务器调度传输 相应的这个特定的包。 因此，当使用RPT时，传输速率由编码的多媒体内容预先确定。 使用本发明的“虚拟时钟”，流服务器具有克服该RTP限制的机制，并且可以以能够平衡内容的带宽需求与网络的带宽可用性的方式进行传输速率适配。

公开(公告)号：US20060069793A1

公开(公告)日：2006-03-30

申请号：US10538100

申请日：2003-12-10

申请人： Qiong Li ,  Mihaela Van Der Schaar

发明人： Qiong Li ,  Mihaela Van Der Schaar

IPC分类号： G06F15/16

CPC分类号： H04N1/48 ,  G01J3/46 ,  G01J3/465 ,  G01J3/501 ,  G01J3/51 ,  G01J2003/467 ,  H04L65/80 ,  H04L69/10 ,  H04L69/28 ,  H04L69/40

摘要： A circular buffer, i.e., a chain of buffers forming a circle, is provided for managing packet loss detection in Internet streaming. The detection latency is determined by the size of the buffer chain, which can be dynamically adapted to network conditions and application requirements. The present invention can achieve reasonable detection accuracy.

摘要翻译： 提供循环缓冲器，即形成圆的缓冲器链，用于管理因特网流中的分组丢失检测。 检测延迟由缓冲链的大小确定，缓冲链可以动态地适应网络条件和应用需求。 本发明可以实现合理的检测精度。