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1. 发明申请

US20110060433A1 BILINEAR ALGORITHMS AND VLSI IMPLEMENTATIONS OF FORWARD AND INVERSE MDCT WITH APPLICATIONS TO MP3 AUDIO 审中-公开
标题翻译：前向和反向MDCT的双向算法和VLSI实现应用于MP3音频
公开(公告)号：US20110060433A1
公开(公告)日：2011-03-10
申请号：US12865831
申请日：2009-02-02
申请人： Xingdong Dai , Meghanad Wagh
发明人： Xingdong Dai , Meghanad Wagh
IPC分类号： G06F17/00
CPC分类号： G06F17/147 , G10L19/0212 , G10L19/16
摘要： Provided herein are hardware efficient bilinear algorithms and methods to compute MDCT/IMDCT of 2̂n and 4.3̂n points. The algorithms and methods for composite lengths have practical applications in MP3 audio encoding and decoding. The MDT/IMDCT can be converted to type-IV discrete cosine transforms (DCT-IV). Using group theory, the methods decomposes DCT-IV transform kernel matrix into groups of cyclic and Hankel product matrices. Bilinear algorithms are then applied to efficiently evaluate these groups. When implemented in VLSI, bilinear algorithms have improved the critical path delays over existing solutions. For MPEG-1/2 layer III (MP3) audio, proposed herein are several different versions of unified hardware architectures for both the short and long blocks and the forward and inverse transforms.
摘要翻译：本文提供了硬件有效的双线性算法和方法来计算2n和4.3n点的MDCT / IMDCT。复合长度的算法和方法在MP3音频编码和解码中具有实际应用。 MDT / IMDCT可以转换为IV型离散余弦变换（DCT-IV）。利用群体理论，将DCT-IV变换核心矩阵分解为循环和汉克尔乘积矩阵。然后应用双线性算法来有效地评估这些组。当在VLSI中实现时，双线性算法已经改进了现有解决方案的关键路径延迟。对于MPEG-1/2 Layer III（MP3）音频，本文提出了用于短块和长块以及正向和反向变换的统一硬件架构的几种不同版本。

2. 发明申请

US20050156810A1 Dynamic message sign display panel communication error detection and correction 有权
标题翻译：动态消息符号显示面板通信错误检测和纠正
公开(公告)号：US20050156810A1
公开(公告)日：2005-07-21
申请号：US10748171
申请日：2003-12-31
申请人： Byron Zerphy , Eric Zerphy , Meghanad Wagh
发明人： Byron Zerphy , Eric Zerphy , Meghanad Wagh
IPC分类号： G09G5/00
CPC分类号： G06F3/1431
摘要： In accordance with the invention, there is described a sign display panel made up of a controller connected in a serial communication network with a set of display units. Each of the display units receives messages from the controller and detects errors in the messages. The controller sends a series of communication integrity messages to the set of display units. When a display unit receives the communication integrity message, it sends it to the next display unit or back to the controller. If a display unit does not receive a communication integrity message within a set time interval, the display unit sends an error message that is received by the controller.
摘要翻译：根据本发明，描述了由串联通信网络与一组显示单元连接的控制器组成的符号显示面板。每个显示单元从控制器接收消息并检测消息中的错误。控制器向一组显示单元发送一系列通信完整性消息。当显示单元接收到通信完整性消息时，它将其发送到下一个显示单元或返回到控制器。如果显示单元在设定的时间间隔内没有接收到通信完整性消息，则显示单元发送由控制器接收到的错误消息。

3. 发明授权

US07248229B2 Dynamic message sign display panel communication error detection and correction 有权
标题翻译：动态消息符号显示面板通信错误检测和纠正
公开(公告)号：US07248229B2
公开(公告)日：2007-07-24
申请号：US10748171
申请日：2003-12-31
申请人： Bryron L. Zerphy , Eric J. Zerphy , Meghanad Wagh
发明人： Bryron L. Zerphy , Eric J. Zerphy , Meghanad Wagh
IPC分类号： G09G5/00
CPC分类号： G06F3/1431
摘要： In accordance with the invention, there is described a sign display panel made up of a controller connected in a serial communication network with a set of display units. Each of the display units receives messages from the controller and detects errors in the messages. The controller sends a series of communication integrity messages to the set of display units. When a display unit receives the communication integrity message, it sends it to the next display unit or back to the controller. If a display unit does not receive a communication integrity message within a set time interval, the display unit sends an error message that is received by the controller.
摘要翻译：根据本发明，描述了由串联通信网络与一组显示单元连接的控制器组成的符号显示面板。每个显示单元从控制器接收消息并检测消息中的错误。控制器向一组显示单元发送一系列通信完整性消息。当显示单元接收到通信完整性消息时，它将其发送到下一个显示单元或返回到控制器。如果显示单元在设定的时间间隔内没有接收到通信完整性消息，则显示单元发送由控制器接收到的错误消息。

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