The present invention enables an apparatus or the like, which does not respond to a communication using a superposed signal, to be used in a system using the superposed signal. This control program, which is for a terminal device connectable to a signal processing device through a communication cable, includes: first identification information acquisition steps for acquiring, from the signal processing device, first identification information for identifying the signal processing device in the terminal device; second identification information acquisition steps for acquiring, through an input part of the terminal device, second identification information for identifying an electric apparatus that is electrically connected to the signal processing device and operates an operation element; generation steps for generating association information for associating the first identification information with the second identification information; and output steps for outputting the association information so that the association information is received by the information processing device.

An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.

A signal processing device includes: a superposing circuit for generating a superposed signal obtained by superposing a data signal indicative of prescribed information on an operation signal relating to an operation element of an electric apparatus; an information storage part for storing the prescribed information; a signal transmission terminal for inputting/outputting the operation signal or the superposed signal to/from the electric apparatus or apparatus control devices; and an information transmission terminal for inputting/outputting information to/from an information transfer device which executes reading of information stored in the information storage part and/or writing of information in the information storage part. The signal processing device is connected to an external device via a connector member. Each of the terminals is provided in an area that is inside the connector member in a state where the signal processing device is connected to the external device via the connector member.

The present invention enables an apparatus or the like, which does not respond to a communication using a superposed signal, to be used in a system using the superposed signal. This control program, which is for a terminal device connectable to a signal processing device through a communication cable, includes: first identification information acquisition steps for acquiring, from the signal processing device, first identification information for identifying the signal processing device in the terminal device; second identification information acquisition steps for acquiring, through an input part of the terminal device, second identification information for identifying an electric apparatus that is electrically connected to the signal processing device and operates an operation element; generation steps for generating association information for associating the first identification information with the second identification information; and output steps for outputting the association information so that the association information is received by the information processing device.

A signal processing device includes: a superposing circuit for generating a superposed signal obtained by superposing a data signal indicative of prescribed information on an operation signal relating to an operation element of an electric apparatus; an information storage part for storing the prescribed information; a signal transmission terminal for inputting/outputting the operation signal or the superposed signal to/from the electric apparatus or apparatus control devices; and an information transmission terminal for inputting/outputting information to/from an information transfer device which executes reading of information stored in the information storage part and/or writing of information in the information storage part. The signal processing device is connected to an external device via a connector member. Each of the terminals is provided in an area that is inside the connector member in a state where the signal processing device is connected to the external device via the connector member.

The present disclosure relates to a method, a system and a computer readable storage medium for controlling protection switching on an optical network. The method for controlling protection switching on an optical network includes: determining a low-frequency signal for service protection, and modulating the low-frequency signal for service protection to a transmission channel of a service signal to be protected and transmitting the low-frequency signal; detecting the low-frequency signal over the transmission channel and acquiring transmission quality information of the low-frequency signal; and determining whether to perform protection switching according to the transmission quality information of the low-frequency signal.

The present disclosure relates to a method, a system and a computer readable storage medium for controlling protection switching on an optical network. The method for controlling protection switching on an optical network includes: determining a low-frequency signal for service protection, and modulating the low-frequency signal for service protection to a transmission channel of a service signal to be protected and transmitting the low-frequency signal; detecting the low-frequency signal over the transmission channel and acquiring transmission quality information of the low-frequency signal; and determining whether to perform protection switching according to the transmission quality information of the low-frequency signal.

A measurement device includes a memory, and circuitry coupled to the memory and configured to obtain first time stamp information transmitted from the first transmission device and added to a first frame in which an error has occurred in the transmission line, obtain second time stamp information transmitted from the second transmission device and added to a second frame in which an error has occurred in the transmission line, and specifies the error occurrence position in the transmission line on the basis of the first time stamp information, the second time stamp information, and a light speed, wherein the first time stamp information is added to the first frame by the first transmission device in time synchronization with the second transmission device, and the second time stamp information is added to the second frame by the second transmission device in time synchronization with the first transmission device.

Pilot-aided digital coherent reception of high-order QAM signal detection using a continuous short pilot preamble and subsequent pilot symbols that are periodically distributed with payload data resulting in low-complexity and fast-convergence signal detection for continuous mode coherent reception of high-order QAM signals. A digital signal processor is configured to demodulate a transmitted data stream from digital stream of measurements of light mixtures produced in a receiver for coherent optical communications in response to receiving modulated optical carriers. The digital signal processor includes one circuit stage for providing corrections to the digital stream to compensate first effects on the light mixtures due to a frequency shift of a local optical oscillator of the receiver and another circuit stage for correcting the digital stream to compensate for second effects on the light mixtures due to polarization dependent channel modification of the modulated optical carriers.

An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.