Abstract:
A solid state imaging device detects the period of energy variation of discharge type illumination, and sets a total exposure time to match the detected period. The total exposure time is divided into alternating valid and invalid exposure times by a division ratio to make the sum of the valid exposure times equal to an actual exposure time corresponding to an actual speed of an electronic shutter. Charges accumulated in a CMOS sensor during the valid exposure times are stored in a floating diffusion, whereas charges accumulated during the invalid exposure times are drained. At the end of the total exposure time, the charges stored during the valid exposure times are converted to an electrical signal which is output to a signal processing circuit. This device can correct variation of output signals which corresponds to the illumination energy variation when the shutter is operated for imaging under high luminance illumination.
Abstract:
The present invention discloses a television receiving system comprising: a smart antenna having a receiving unit that electrically switches directions of receiving television broadcasting signals and a connecting portion that is detachably connected to the receiving unit; and a television receiver couple with the receiving unit though the connecting portion and having a holding portion that holds the receiving unit detached from the connecting portion on a rear surface of the television receiver where is opposite to a front surface displaying videos.
Abstract:
With a power supply provided for a smart antenna, whether the antenna is connected is determined according to whether the power supply is connected. When it is determined that the smart antenna is not connected, power supply to units related only to controlling of the smart antenna is stopped, whereby power saving is realized. Further, user's setting for discriminating kinds of antennas becomes unnecessary and, when a smart antenna is not connected, power supply for the same can be prevented.
Abstract:
A holding part 50 fixedly holds a shaft 17 included in a smart antenna 10 on a television receiver 20. The smart antenna 10 is held fixedly by the holding part 50. The shaft 17 of the smart antenna 10 is provided with an opening 17a in a part thereof distant from a part thereof held by the holding part 50. A wiring 15a is extended outside from the shaft 17 through the opening 17a and is connected to the television receiver 20.
Abstract:
A television receiver having an antenna function for receiving broadcast signals includes an antenna group having plural variable directivities and including plural antennas formed in plural parts on inner and outer surfaces of walls of a cabinet or nonmetallic surfaces of component parts arranged in the cabinet so as to conform to the shapes of the corresponding surfaces, respectively, and a switching control unit capable of specifying a directivity for the antenna group to receive broadcast signals by the antenna group.
Abstract:
The present invention discloses a television receiving system comprising: a smart antenna having a receiving unit that electrically switches directions of receiving television broadcasting signals and a connecting portion that is detachably connected to the receiving unit; and a television receiver couple with the receiving unit though the connecting portion and having a holding portion that holds the receiving unit detached from the connecting portion on a rear surface of the television receiver where is opposite to a front surface displaying videos.
Abstract:
An object of the present invention is to obtain a superconductive magnet, the size of which can be reduced by shortening the radial length of a magnetic device thereof and the refrigerating performance of which can be improved. A cylinder for fastening a refrigerator has an end facing an ambience of helium gas evaporating in a helium chamber and another end which is substantially horizontally fastened to a vacuum chamber. Further, the three-stage regenerative refrigerator is inserted and fastened to the cylinder for fastening the refrigerator. A heat insulator, such as a convection prevention tube, made of a hollow Teflon tube is wound around the outer surface of each stage of the cylinder of the three-stage regenerative refrigerator. The convection prevention tube is enclosed into a gap between the cylinder for fastening the refrigerator and the three-stage regenerative refrigerator without no undesirable gap so that heat convection of the helium gas is prevented.
Abstract:
In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
Abstract:
In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.
Abstract:
In a multi-stage cold accumulation type refrigerator including a compressor disposed at an ordinary temperature, a helium gas as a common operating fluid to be compressed by the compressor, and one or more expansion chambers and cold accumulators of different temperature levels; a cold accumulating member of the cold accumulators is formed of an alloy or compound containing a rare earth metal, so that the efficiency of the refrigerator can be improved. Further, a heat generation quantity due to sliding resistance of a seal is set to be smaller than a theoretical generated refrigeration quantity to be obtained on the assumption of isothermal expansion in the expansion chambers, so that the refrigerating capacity can be improved. The refrigerator is applied to a cooling device for cooling a superconducting magnet, SQUID, superconducting computer, infrared telescope, etc.