摘要:
The present invention relates to a network system allowing easy communications with another apparatus via NAPT, a communication method, information processing apparatus and method, and a program. A local communication apparatus 11 acquires a service providing packet from an apparatus service providing apparatus 51 via a port 342-1 of a relay apparatus 12, acquires a service providing packet from an apparatus service providing apparatus 52 via a port 342-2 of the relay apparatus 12, calculates a difference value between two pieces of global address information contained in the service providing packets, and predicts that a port 342-3 is the port to be used for the next communication. The present invention can be applied to an instant message service system.
摘要:
This system comprises, as shown in FIG. 17, at least one console PCs (43), (44) etc. each processing arbitrary information, target PCs (46) through (49) for providing electronic information contents to at least the console PC (44) etc., communication cables (41A), (41B) for connecting the target PC (46) etc. and each of the console PCs (43), (44) etc., and an operating right management PC (45) for controlling a communication between these console PCs (43) and target PCs (46). The operating right management PC (45) receives a request for input operation from any console PC (43) and invests the console PC (43) sending the request for input operation with an operating right. It is possible for the console PC (43) acquired the operating right to remote-control a plurality of arbitrary target PC (46) exclusively at the same time with it having precedence over other console PC (44) etc.
摘要:
It is made possible to update software appropriately. When additional software is installed, update management data for the additional software is generated. When the update management data for the additional software is attached to the additional software in advance, that data is used. If the update management data is not attached, cycles for confirming the presence of updates and the like are determined based on the nature of the software, and the update management data is thus generated. Then, the generated update management data is set in an update management table. The presence of software updates is checked for based on the cycles for confirming the presence of updates in the update management table.
摘要:
A cathode ray tube comprises an envelope; an electron beam source positioned at one end of the envelope; a target positioned at another end of the envelope opposite to the electron beam source; a mesh electrode positioned opposite to the target; and an electrostatic lens means positioned between the electron beam source and the mesh electrode, the lens means having a first electrode, a second electrode and a third electrode respectively positioned along the electron beam path to focus the electron beam, the second electrode being divided into four arrow or zig-zag patterns to deflect the electron beam.
摘要:
A video signal processing system which detects a change of the video data in the video signal supplied by a source by comparing the source video signal with a variable reference signal derived from a predetermined number of sampled fields of the source video signal but which excludes the video data of those pixels whose video data fluctuates during the sampled frames.
摘要:
The present invention provides a display device, a method for driving the same, and an electronic device capable of making μ correction function reliably even in the case where light emission luminance is low. A potential difference between the gate and the source of a transistor is corrected to a threshold voltage of the transistor. After that, while a horizontal drive circuit outputs a third voltage Vofs2, correction of mobility of the transistor starts. Subsequently, while the horizontal drive circuit outputs a second voltage Vsig, writing of a voltage according to the second voltage Vsig to the gate of the transistor is started.
摘要:
It is made possible to update installed software appropriately. A CE device stores an update management table in which are set, with respect to software bundled with the CE device, the names, IDs, version numbers, update cycles, and contact information (URLs of update data supplying servers) for making inquiries on the presence of updates. For example, assuming that everyday, when it is recognized that the time is past 10:00, there is a need to check for the presence of updates for software A, the CE device accesses a URL corresponding to software A, and makes an inquiry on the presence of updates.
摘要:
It is made possible to update software appropriately. When additional software is installed, update management data for the additional software is generated. When the update management data for the additional software is attached to the additional software in advance, that data is used. If the update management data is not attached, cycles for confirming the presence of updates and the like are determined based on the nature of the software, and the update management data is thus generated. Then, the generated update management data is set in an update management table. The presence of software updates is checked for based on the cycles for confirming the presence of updates in the update management table.
摘要:
In a demodulating circuit, for example, for demodulating an amplitude- or frequency-modulated signal, analog-to-digital converted values are obtained at a plurality of sampling points in each cycle of the modulated signal, such converted values are integrated to provide a calculated integration value for the respective cycle, and the calculated integration value is compared with a maximal integration value derived in the same manner so as to obtain the demodulated output.
摘要:
A television telephone system utilizes a tone signal of a predetermined duration. The tone signal has a plurality of frequencies and is positioned at the starting portion of a transmission signal. The tone signal reduces the possibility of mis-detection of signals during reception and allows video signals to be transmitted more satisfactorily.