摘要:
This invention relates to both a method and device for booting up a device and online scrubbing utilizing a system on chip appliqué sensor interface module in a Space Plug-and-Play Avionics environment that incorporates Radiation Hardened by Design components.
摘要:
The present invention relates to portable wireless communication systems, in particular for sending and receiving data including position information using radio frequencies. The invention comprises: (i) a hand held digital computer; (ii) a position-locating device providing position information to the digital computer; (iii) a VHF and/or UHF radio frequency transmitter; and (iv) a radio modem having an input for digital data from the hand held digital computer, a modulator for converting digital data from the computer into a modulated analogue RF signal, and an output connected to the transmitter for transmission of said modulated signal.
摘要:
To allow meter data users to have access to needed information and at the same time address the rapidly shifting requirements of the deregulated marketplace, a new business model employs a common metering device that measures raw data and a system composed of independent services or applications that collect and process raw metered data and then make that data available to interested parties. This new model removes the dependence upon an automatic meter reading (AMR) system provider, as the sole provider, by creating a system to enable a competitive environment where services (applications, information, networking, etc.) rather than systems are selected and paid for on a leased or pay-per-use basis.
摘要:
To allow meter data users to have access to needed information and at the same time address the rapidly shifting requirements of the deregulated marketplace, a new business model, apparatus and system are provided. A common metering device measures raw data and a system composed of independent services or applications collect and process raw metered data and then make that data available to interested parties. This new model removes the dependence upon an automatic meter reading (AMR) system provider, as the sole provider, by creating a system to enable a competitive environment where services (applications, information, networking, etc.) rather than systems are selected and paid for on a leased or pay-per-use basis. One example of such a networked-based, extensible metering system comprises a network server, a wide area network coupled to the network server, and a plurality of network-enabled meters coupled to the network. The meters collect data and the network server provides at least one metering application to the meters. In addition, the meters may be programmed to communicate via a predefined protocol and to deliver a protocol interface to a storage medium on the network, which enables the network to provide the protocol interface to users or applications requiring information from the meters and the users/applications to communicate with the meters to access the required information.
摘要:
To allow meter data users to have access to needed information and at the same time address the rapidly shifting requirements of the deregulated marketplace, a new business model, apparatus and system are provided. A common metering device measures raw data and a system composed of independent services or applications collect and process raw metered data and then make that data available to interested parties. This new model removes the dependence upon an automatic meter reading (AMR) system provider, as the sole provider, by creating a system to enable a competitive environment where services (applications, information, networking, etc.) rather than systems are selected and paid for on a leased or pay-per-use basis. One example of such a networked-based, extensible metering system comprises a network server, a wide area network coupled to the network server, and a plurality of network-enabled meters coupled to the network. The meters collect data and the network server provides at least one metering application to the meters. In addition, the meters may be programmed to communicate via a predefined protocol and to deliver a protocol interface to a storage medium on the network, which enables the network to provide the protocol interface to users or applications requiring information from the meters and the users/applications to communicate with the meters to access the required information.
摘要:
A method and device for analog simultaneous voice and data transmission over an analog channel encodes at a voice signal sampling rate a sampled voice signal including spectral and pitch information. During encoding, the spectral and pitch information is extracted from the sampled voice signal to produce a residual signal, and the residual signal is converted into a sequence of residual vectors at a Baud rate. Then, a bitstream including non voice data and the extracted spectral and pitch information is produced. A modem unit, operating at Baud rate and producing an output carrier wave supplied to the analog channel, produces a sequence of symbol vectors in response to the sequence of residual vectors and the bitstream, and modulates the output carrier wave in response to the sequence of symbol vectors. A fractional sampling-rate conversion is conducted on the residual signal by shifting the voice signal sampling rate by a factor M/N, where M and N are the smallest integers that verify, or closely verify, the equality M/N=2R/F, where R is the Baud rate and F is the voice signal sampling rate. This fractional sampling-rate conversion further involves anti-aliasing filtering of the residual signal. In this manner, encoding operates at a voice signal sampling rate independent of the modem's Baud rate.
摘要翻译:用于通过模拟通道进行模拟同时语音和数据传输的方法和装置以语音信号采样率编码包括频谱和音调信息的采样语音信号。 在编码期间,从取样的声音信号中提取频谱和音调信息以产生残余信号,并且以波特率将剩余信号转换为残余矢量序列。 然后,产生包括非语音数据和提取的频谱和音调信息的比特流。 以波特率工作并产生提供给模拟通道的输出载波的调制解调器单元响应于残余向量和比特流的序列产生符号向量序列,并且响应于序列的顺序来调制输出载波 符号向量。 通过将语音信号采样率移位一个因子M / N,对残差信号进行分数采样率转换,其中M和N是验证或仔细验证相等的最小整数M / N = 2R / F ,其中R是波特率,F是语音信号采样率。 该分数采样率转换还包括残差信号的抗混叠滤波。 以这种方式,编码以独立于调制解调器的波特率的语音信号采样速率进行操作。