摘要:
A packet shaper includes: a TCP packet queue for storing TCP packets; a UDP packet queue for storing UDP packets; a scheduler for outputting a packet from one of the queues into a rate-setting control unit. Control based on a total queue length is performed to deterioration of image quality or tone quality in the audio/visual communications according to a connection-oriented protocol like TCP.
摘要:
A packet-relay unit 100 including a first interface unit (110), a second interface unit (120), and a function-setting switch (130). The second interface unit (120) includes a classifying unit (121), a priority control unit (122), and a transceiving unit (123). When the function-setting switch (130) sets a “QoS function” as “operative”, the classifying unit (121) transfers packets transferred from the first interface unit (110) to the priority control unit (122). The priority control unit (122) provides priority control over the transferred packets such that the transferred packets are preferentially treated at a wireless zone connected to the second interface unit (120), whereby the priority-controlled packets are transferred to a transceiving unit (123) from the priority control unit (122). When the function-setting switch (130) sets “the QoS function” as “inoperative”, the classifying unit (121) transfers the transferred packets directly to the transceiving unit (123).
摘要:
A communication apparatus is provided which is capable of easily detecting an error that is difficult to detect, in a communication cable. The communication apparatus performs communication using a communication cable including plural sets of paired wires each of which has two core wires, and includes: an interface unit (310) connectable to the communication cable; a measuring unit (320) which obtains measurement values by measuring a value indicating a state of each set of the paired wires included in the communication cable connected to the interface unit (310); and an error information output unit (330) which outputs error information indicating an error in the communication cable when the measured values obtained by the measuring unit (320) are substantially different.
摘要:
An air conditioning system comprising: a refrigeration cycle including a compressor, a reversing valve, a condenser, a pressure reducing device and an evaporator; a thermal storage heat exchanger which is arranged at a lower portion in a thermal storage tank with a thermal storage material filled therein, and whose refrigerant inlet side is smaller than its refrigerant outlet side in terms of heat exchange capability; and a thermal absorption heat exchanger which is arranged at an upper portion in the thermal storage tank in a way to be reverse to the flow direction of a refrigerant in the thermal storage heat exchanger.
摘要:
An air conditioning system comprising a refrigerant circuit. A thermal storage device is arranged in the refrigerant circuit and can store heat and utilize the stored heat to increase heating capacity at the time of kickoff of heating. A temperature detector detects a temperature at a thermal storage portion of a thermal storage and radiating heat exchanger which is housed in the thermal storage device. A counter counts a thermal storage operation period required for the temperature detected at the thermal storage portion to achieve a predetermined value, outputs a signal indicative of stopping a thermal storage operation when the detected temperature has achieved the predetermined value, counts the lapse of a predetermined thermal storage operation stoppage period after stop of the thermal storage operation, and outputs a signal indicative of starting the thermal storage operation when a predetermined thermal storage operation stoppage time has passed. A controller controls comparing the counted thermal storage operation period with a present value, and determines the next thermal storage operation stoppage period, depending on the length of the counted thermal storage operation period.
摘要:
When an instruction receiving unit (620) receives an information display instruction to display information on a video that is not being reproduced (hereinafter referred to as video content not being reproduced) which is a video different from a video that is being reproduced, a control unit (630) causes a display device to display information on video content not being reproduced which is all or part of the video content not being reproduced and can be reproduced by a reproduction unit (610) within a duration of an unreproduced portion of the video that is being reproduced.
摘要:
This invention relates to a shoe sole that solves the problems on weight saving in shoes, prevention of distortion, improvement in the fitting property and prevention of upthrust simultaneously. The reinforcing member 3 for reinforcing a part of the midsole 2 is arranged so that the top surface 36 of the second arch 3c and the bottom surface 29 of the first arch 2c are opposite to each other. At least a part of the bottom surface 29 of the first arch is not in contact with a part of the top surface 36 of the second arch in vertically spaced relationship to each other, thereby that the non-contact areas of the first arch 2c and the second arch 3c can be deformed independently from each other when impact load of landing is applied.
摘要:
An operation controller for an air conditioner designed to decrease a difference between an ambient temperature and a set temperature by varying the number of revolutions of a compressor, includes: a means for calculating an operation ratio of the compressor; and a means for determining the range of varying an operation frequency of the compressor in accordance with the operation ratio.