公开(公告)号：EP3624336A3

公开(公告)日：2020-08-26

申请号：EP19193212.8

申请日：2019-08-22

申请人： RGB Systems, Inc.

发明人： Mendenhall, Eric

IPC分类号： H03F1/26 ,  H03F1/32 ,  H03F3/187 ,  H03G3/30 ,  H03G11/04

摘要： A voltage controlled amplifier with an amplitude limiting circuit, such as a clip limiter, that is separate from the signal path on which the input signal is received by a power amplifier can reduce both noise and power expenditure of the voltage controlled amplifier. The amplitude limiting circuit can include a transistor network that is controlled by a pair of utility operational amplifiers. These utility amplifiers may use less current than the audio amplifier of the voltage controlled amplifier. Further, the transistor network can be deactivated when a signal supplied to the voltage controlled amplifier is below a clipping or other voltage limiting threshold.

公开(公告)号：EP2928189A1

公开(公告)日：2015-10-07

申请号：EP15164542.1

申请日：2006-08-11

申请人： RGB Systems, Inc.

发明人： Smith, Peter Lionel

IPC分类号： H04N19/176 ,  H04N19/70 ,  H04N19/64 ,  H04N19/63 ,  H04N19/61 ,  H04N19/107 ,  H04N19/132 ,  H04N19/17 ,  H04N19/635 ,  H04N19/42 ,  H04N19/89 ,  H04N19/645 ,  H04N19/86 ,  H04N19/507 ,  H04N19/68

CPC分类号： H04N19/68 ,  H04N19/107 ,  H04N19/13 ,  H04N19/132 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/33 ,  H04N19/42 ,  H04N19/423 ,  H04N19/507 ,  H04N19/51 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635 ,  H04N19/645 ,  H04N19/647 ,  H04N19/66 ,  H04N19/70 ,  H04N19/86 ,  H04N19/89 ,  H04N19/96

摘要： Methods of data encoding using trees formed with logic gates are described which lead to spatial compression of image data. Data encoding is achieved using a five-level wavelet transform, such as the Haar or the 2/10 transform. A dual transform engine is used, the first and engine being used for the first part of the first-level transform, the second part of the first-level transform and the subsequent-level transforms being performed by the second transform engine within a time interval which is less than or equal to the time taken by the first transform engine to effect the part-transform. Each bit plane of the resulting coefficients is then encoded by forming a tree structure from the bits and OR logical combinations thereof. Redundant data are removed from the resulting tree structure, and further data can be removed by using a predetermined compression profile. The resulting blocks of compressed data are of variable length and are packaged with sync words and index words for transmission so that the location and identity of the transformed data blocks can be determined from the received signal.

摘要翻译： 描述了使用由逻辑门形成的树的数据编码方法，其导致图像数据的空间压缩。 数据编码通过使用五级小波变换（如Haar或2/10变换）来实现。 使用双变换引擎，第一和引擎用于第一级变换的第一部分，第一级变换的第二部分和后续级变换由第二变换引擎在一段时间间隔内执行 这小于或等于第一变换引擎进行部分变换所花费的时间。 然后通过根据其比特和OR逻辑组合来形成树结构来对结果系数的每个比特平面进行编码。 从生成的树结构中删除冗余数据，并且可以使用预定的压缩配置文件删除更多数据。 所得到的压缩数据块具有可变长度，并且与同步字和索引字一起封装以用于传输，从而可以根据接收到的信号确定经变换的数据块的位置和身份。

公开(公告)号：EP2817978A2

公开(公告)日：2014-12-31

申请号：EP13751924.5

申请日：2013-02-01

申请人： RGB Systems Inc.

发明人： STEWART, William, C., Jr. ,  HATLEY, Jeff ,  HUDSON, Michael ,  FRERICHS, Larry ,  STRONG, Clinton ,  TRENHOLME-PIHL, Westley

IPC分类号： H04R19/02

CPC分类号： H04R1/345 ,  H04R1/021 ,  H04R1/026 ,  H04R1/323 ,  H04R2201/021

摘要： The present invention comprises a loudspeaker system that includes a loudspeaker and a detachable mount. In one or more embodiments, the loudspeaker and mount include electrical connectors that are engaged when the loudspeaker is attached to the mount. In one or more embodiments, the loudspeaker and mount comprise mating mounting structures that support the loudspeaker on the mount when the mounting structure of the loudspeaker is engaged with the mounting structure of the mount. In one or more embodiments, multiple configurations of the mount are provided that allow the loudspeaker to be mounted with a variety of orientations with respect to the mounting surface. In one or more embodiments, the loudspeaker comprises a tweeter with a rotatable wave guide that allows the dispersion angle of the tweeter to be adjusted to accommodate the variety of orientations at which the loudspeaker may be mounted.

摘要翻译： 本发明包括扬声器系统，其包括扬声器和可拆卸的支架。 在一个或多个实施例中，扬声器和支架包括当扬声器附接到支架时接合的电连接器。 在一个或多个实施例中，扬声器和底座包括当扬声器的安装结构与底座的安装结构接合时将扬声器支撑在底座上的配合安装结构。 在一个或多个实施例中，提供了允许扬声器相对于安装表面以各种方位安装的安装架的多种配置。 在一个或多个实施例中，扬声器包括具有可旋转波导的高音扬声器，其允许调节高音扬声器的扩散角度以适应扬声器可安装的多种方位。

公开(公告)号：EP2301149B1

公开(公告)日：2014-12-17

申请号：EP09794768.3

申请日：2009-06-16

申请人： RGB Systems, Inc.

发明人： MENDENHALL, Eric

IPC分类号： H03F3/217 ,  H02M3/335

CPC分类号： H03F3/2173 ,  H02M3/33592 ,  H02M5/4585 ,  H03F3/217 ,  H03F3/2171 ,  H03F2200/03 ,  H03F2200/504 ,  H03F2203/21193 ,  Y02B70/1475

公开(公告)号：EP2301149A1

公开(公告)日：2011-03-30

申请号：EP09794768.3

申请日：2009-06-16

申请人： RGB Systems, Inc.

发明人： MENDENHALL, Eric

IPC分类号： H03F3/217

CPC分类号： H03F3/2173 ,  H02M3/33592 ,  H02M5/4585 ,  H03F3/217 ,  H03F3/2171 ,  H03F2200/03 ,  H03F2200/504 ,  H03F2203/21193 ,  Y02B70/1475

摘要： A method and apparatus for power conversion in a class D amplifier is provided. The power conversion is achieved using synchronous rectifiers in a regulated half bridge power supply, taking the sum of the positive and negative rails as feedback, in order facilitate energy transfer between positive and negative output rails. This minimizes the effects of off side charging and rail sag, as well as achieving good line regulation, while allowing use of very small, low value output capacitors.

公开(公告)号：EP2127078A1

公开(公告)日：2009-12-02

申请号：EP08713985.3

申请日：2008-01-24

申请人： RGB Systems, Inc.

发明人： MENDENHALL, Eric

IPC分类号： H03K4/06

CPC分类号： H03K4/90 ,  H03F3/217 ,  H03K4/06 ,  H03K5/06

摘要： A triangular waveform generator includes a square waveform clock circuit and an active integrator. The active integrator receives input from the square waveform clock circuit and generates a triangular waveform output. An active feedback network is operatively added to the active integrator to reduce the audio band noise content in the triangular waveform output. The feedback network acts as a DC balance without significant sacrifice in the linearity of the triangular waveform output.

公开(公告)号：EP2090117A2

公开(公告)日：2009-08-19

申请号：EP07839963.1

申请日：2007-11-06

申请人： RGB Systems, Inc.

发明人： HALL, Raymond William ,  COLE, Gary Dean ,  PARRECO, Donald E.

IPC分类号： H04N11/06

CPC分类号： H04N7/108 ,  H04B3/10 ,  H04L25/0272 ,  H04L25/0296

摘要： A system capable of transmitting and receiving high frequency video signals across various lengths of a twisted pair cable while maintaining video quality is presented. The system includes a transmitter and a receiver tandem coupled together over twisted pair cable. Each video component is mixed with a reference signal in the transmitter and driven differentially onto the twisted pair cable. Upon detection of a signal in the twisted pair cable, the receiver adjusts its internal gains until the known characteristic of the reference signal is achieved. The receiver then automatically adjusts the skew & DC offset. Thus, the receiver is able to automatically measure the degradation in video quality and appropriately compensate the video signals for the accumulated degradation caused primarily by the transmission between the transmitter and the receiver. The compensated video may subsequently be provided to a video display device.

公开(公告)号：EP1342368A1

公开(公告)日：2003-09-10

申请号：EP01966733.6

申请日：2001-08-29

申请人： RGB Systems, Inc.

发明人： TANG, Che, Wing ,  TROUNG, Dung, Duc

IPC分类号： H04N5/44

CPC分类号： H04N7/012 ,  H04N7/0112

摘要： A method and apparatus for detecting and correcting motion artifacts in interlaced video signal converted for progressive video display. A correction is applied where interlaced video material is determined to originate from film source, thereby having been converted to video using a process known as 3-2 pulldown. Where the video material is not a result of the 3-2 pulldown process, a check is made for the presence of "pixel motion" so that corrections may be applied to smooth out the pixel motion. To determine 3-2 pulldown or field motion, a video field is compared to the field prior to the previous field to generate field error. Field errors are generated for five consecutive fields and a local minimum error repeated every five fields indicate the origination of the video material from film source using the 3-2 pulldown process. Upon confirmation of 3-2 pulldown, the video material is modified to correct for the mixing of two film frames into one interlaced video frame by assuring that the two fields of the de-interlaced video frame contain data from the same film frame. Where the video material did not originate from a film source, but pixel motion is detected, the pixel motion is smoothed out by an averaging method. The odd and even fields of the resulting video data are subsequently combined to form a progressive video material.

公开(公告)号：EP2876072B1

公开(公告)日：2018-03-14

申请号：EP14188680.4

申请日：2014-10-13

申请人： RGB Systems Inc.

发明人： Soper, Matthew

IPC分类号： B65H75/36 ,  B65H75/44 ,  H02G11/00

CPC分类号： B65H75/368 ,  B65H75/4423 ,  B65H75/4439 ,  B65H2701/34 ,  H02G11/003

摘要： The present invention is a speed control for a cable retractor. The cable retractor with which the speed control is used comprises a pulley (1165) that engages a cable (1035) that may be extended and retracted. A friction element (1140) configured to adjustably contact the cable (1035) adjacent to the pulley (1165) is attached to a movable linkage. The movement of the linkage is constrained to move along a predetermined path such that movement of the linkage along the path alters the distance between the friction element (1140) and the pulley (1165). In one or more embodiments a cantilevered spring (1055) is attached to the linkage. An adjustable control, for example a thumbscrew (1060), is configured to move the spring in relation to the linkage in a manner that alters the position of the friction element with respect to the cable and/or the pressure exerted by the friction element on the cable.

公开(公告)号：EP1917813B1

公开(公告)日：2015-07-01

申请号：EP06765262.8

申请日：2006-08-11

申请人： RGB Systems, Inc.

发明人： SMITH, Peter, Lionel

IPC分类号： H04N19/176 ,  H04N19/70

CPC分类号： H04N19/68 ,  H04N19/107 ,  H04N19/13 ,  H04N19/132 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/33 ,  H04N19/42 ,  H04N19/423 ,  H04N19/507 ,  H04N19/51 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635 ,  H04N19/645 ,  H04N19/647 ,  H04N19/66 ,  H04N19/70 ,  H04N19/86 ,  H04N19/89 ,  H04N19/96

摘要： Methods of data encoding using trees formed with logic gates are described which lead to spatial compression of image data. Data encoding is achieved using a five-level wavelet transform, such as the Haar or the 2/10 transform. A dual transform engine is used, the first and engine being used for the first part of the first-level transform, the second part of the first-level transform and the subsequent-level transforms being performed by the second transform engine within a time interval which is less than or equal to the time taken by the first transform engine to effect the part-transform. Each bit plane of the resulting coefficients is then encoded by forming a tree structure from the bits and OR logical combinations thereof. Redundant data are removed from the resulting tree structure, and further data can be removed by using a predetermined compression profile. The resulting blocks of compressed data are of variable length and are packaged with sync words and index words for transmission so that the location and identity of the transformed data blocks can be determined from the received signal.