摘要:
There is provided in an embodiment according the present invention, a signal processing device comprising detecting means for detecting a predetermined frequency component of the input signal; modulating means for modulating the input signal and supplying the modulated signal to a recording device; and switching means for supplying, in a first state, the output of the modulating means to the detecting means, and for supplying, in a second state, a reproduced signal to the detecting means from a reproducing device. With the aforementioned construction, the detection circuit that detects a predetermined frequency component included in the modulated digital signal can be used during recording as well as during signal reproduction, which greatly contributes to reducing the size and cost of the recording/reproducing device.
摘要:
The present invention realizes a communication system and a method for a communication system including a source node, one or more destination nodes and a controller. The controller is adapted to notify the source node and the one or more destination nodes of first information representing the logical connection and second information that is unique to the controller, and the source node is adapted to divide data to be transmitted to the one or more destination nodes into a plurality of segment data, and transfer each of the segment data with the first and second information obtained from by the controller to the one or more destination nodes. In addition, each of the one or more destination nodes includes a receiving buffer, and is adapted to store each segment data in the receiving buffer.
摘要:
A communication system, in which data transmission is interrupted for a bus reset, includes a source and a destination with a receiving buffer. The source is adapted to transmit a segment of data to the destination using address information corresponding to a part of the receiving buffer of the destination. Transmission of the data is interrupted if a process of resetting a bus between the source and the destination occurs. After the process of resetting the bus ends, the transmission of the data resumes without retransmitting data determined by the source to be already stored in the receiving buffer.
摘要:
An image processing apparatus includes an input unit for inputting an image signal, a signal processing unit for processing an output from the input unit to generate an image signal of a first format, a conversion unit for compressing an output from the signal processing unit and converting the same to an image signal of a second format and a digital interface unit for selectively transmitting the output from the signal processing unit and the output from the conversion unit to an external equipment.
摘要:
There is disclosed a communication system and communication protocol in which a source node and one or more destination nodes are logically connected, and a connection ID for identifying the logical connection relationship is used to control data communication between the nodes. There is also disclosed an efficient communication system and communication protocol in which an optimum time interval between a time to transmit an i-th (i being an optional integer) data and a time to transmit an (i+1)-th data can be set. There is further disclosed a communication system and communication protocol in which when the i-th data is not normally received, retry is inhibited only for a predetermined time to prevent the retry from unnecessarily occurring between a destination node slow in receiving process and a source node fast in transmitting process.
摘要:
In a data communication system composed of plural equipment, there are provided display means for displaying the connection relationship among the plural equipment, and designation means for designating a specified equipment displayed by the display means. The user can easily confirm the connection state and the connection position of the specified equipment, by effecting communication for confirming the connection relationship of the specified equipment, according to the designation by the designation means. Also the user can easily understand the flow of the signals in the data communication system, by displaying the channel information, indicating the data flow among the equipment, and the equipment information.
摘要:
A communication system includes a source node including a first connection control register, a destination node including a second connection control register, and a controller. The controller is adapted to select one of a first and a second communication protocol as a communication protocol to be used between the source node and the destination node, to set a logical connection to be used between the source node and the destination node, to access the first connection control register to store therein information for the communication protocol selected by the controller and information for the logical connection set by the controller, and to access the second connection control register to store therein information for the communication protocol selected by the controller and information for the logical connection set by the controller. The first communication protocol uses an asynchronous transfer, but does not use an isochronous transfer.
摘要:
A data communication apparatus (a) determines a segment size and a segment data size in accordance with a size of a receiving buffer of the destination node, the size of the receiving buffer being determined by the destination node in accordance with a maximum payload size that can be received by the destination node, (b) divides object data into segments in accordance with the segment size, and (c) divides each segment into a plurality of segment data in accordance with the segment data size. The data communication apparatus (c) generates packets from the plurality of segment data, and (d) transfers the packets from the data communication apparatus to the destination node via a logical connection set between te data communication apparatus and the destination node, the logical connection being set by a controller.
摘要:
An image processing apparatus includes an input unit for inputting an image signal, a signal processing unit for processing an output from the input unit to generate an image signal of a first format, a conversion unit for compressing an output from the signal processing unit and converting the same to an image signal of a second format and a digital interface unit for selectively transmitting the output from the signal processing unit and the output from the conversion unit to an external equipment.
摘要:
Provided is a communication system for logically connecting a source node and one or more destination nodes, and for controlling data communication between the individual nodes by employing a connection ID that is used to identity the logical connection relationship. The communication system may comprise a source node adapted to transmit data packets, a destination node adapted to receive the data packets transmitted from the source node, and a controller adapted to manage a logical connection between the source node and the destination node, the destination node being adapted to abort communication between the source node and the destination node if the destination node received an abort packet transmitted from the controller, and the destination node being adapted to disconnect the logical connection after the communication is aborted by the abort packet. The source node itself, and methods of using the system and that node, are also individual aspects of what is disclosed.