Sanyo Electric Co., Ltd.

Tokyo Sanyo Electric

Prodex Co. Ltd.

Tsutomu Tanaka

Takashi Takizawa

Mutsuki Niki

Tsutomu Ishikura

Masahiko Nagatake

Tomohiro Okubo

Yutaka Saito

Kazuo Matsubara

Yasuhiko Hayashi

Hideake Hurutachi

Hideaki Hurutachi

Masafumi Sakaguchi

Shigekazu Kawai

In a VIF circuit for synchronously detecting a picture signal from an AM-modulated PIF signal, the accuracy of a picture signal to be demodulated is maintained even in a state of overmodulation. A comparator () determines whether the picture signal exceeds V, which is a state of overmodulation. In a period in which the signal is less than or equal to V, a switch circuit () inputs an output voltage of an APC filter () to a VCO (), and a PLL is formed. The PLL operates so as to lock onto the PIF signal, and reproduces a carrier wave. On the other hand, in a period in which the signal exceeds V, the switch circuit () inputs an output voltage Vof an SH circuit () to the VCO (). The SH circuit () holds the voltage of the APC filter () that is in a locked state in a horizontal synchronizing period and uses the voltage to control the VCO (), whereby free run and frequency drifting are minimized.

Picture signal detecting apparatus

A showcase has shelf devices in a chamber having a plurality of open surfaces, a pair of shelf support members which extend in a depth direction of the chamber supporting the shelves in a position where adjacent shelves are butted with each other. A support member side portion protrudes from a lower portion of one shelf support member to another shelf support member, a support member side portion protrudes from a lower portion of the other shelf support member to the one shelf support member and superimposed on the support member side portion, a shelf side portion has bottom side superimposed on the support member side portion, a shelf side portion formed under the adjacent shelf has a bottom side superimposed on the shelf side portion, and a bonding member detachably bonds the support side portions and shelf side portions in a superimposed position.

Showcase

An object is to provide a showcase capable of realizing a stable attaching operation of sockets and a replacement operation of an illuminative lamp, the showcase provided with the illuminative lamp having terminals at opposite end portions, respectively, includes a pair of sockets which connect the illuminative lamp to a power source of a main body, each socket includes a housing having an opening in at least a surface on an illuminative lamp side, and a lid member to block the opening of the housing in a state in which the terminals are allowed to enter the housing, the housing has a connecting portion to store a power supply portion internally connected to the terminal, and a holding protrusion moved in a direction disengaging from the illuminative lamp to engage with a lower surface of a shelf, and the lid member is fixed to the lower surface of the shelf by a screw in a state in which the lid member blocks the opening of the housing which holding protrusion is engaged with the lower surface of the shelf.

An antenna is provided as a substrate member, and, as with the antenna, a ground part is provided as a substrate member. The ground part includes a folded pattern formed of a copper foil provided on the surface of a substrate material. When a folded pattern in the antenna and the folded pattern in the ground part are configured in a length of &#x3bb;/4, a pseudo-antenna having a length of &#x3bb;/2 can be formed. In this case, the antenna gain is about 2 dB, that is, the radiation of the radio wave can be improved. At the same time, the antinoise properties and the arrival distance of the radio wave can be improved. That is, the above construction can realize radio equipment which can stably radiate radio waves even under ungroundable conditions and, at the same time, can realize good characteristics even under low transmission output conditions.

Radio equipment

The present invention aims at providing a refrigerating system capable of cooling a compressor stably using a liquid injection circuit even when defrosting of an evaporator is performed using a gaseous refrigerant of high pressure. The refrigerating system comprises a compressor having a refrigerant discharge side and a refrigerant suction side; a condenser connected to the discharge side of the compressor; a receiver tank connected to a refrigerant outlet side of the condenser; an evaporator connected between a refrigerant outlet side of the receiver tank and the suction side of the compressor; a defrosting circuit which supplies a gaseous refrigerant obtained by gas-liquid separation in the receiver tank to the evaporator to defrost the evaporator; and a liquid injection circuit which supplies a liquid refrigerant obtained by gas-liquid separation in the receiver tank to a low pressure side in the interior of the compressor.

Refrigerating system with compressor cooled by liquid refrigerant

A low-temperature showcase in which a double air curtain can be formed for a commodity inlet-outlet opening provided in one side of the case main body having a heat exchanger in an inner passage positioned upstream of and at a predetermined distance from another heat exchanger in an outer passage with respect to the same direction of air flows in the two passages, a partition wall defining the inner and outer passages and having a window at a portion thereof between the two heat exchangers, a passage change-over device for opening or closing the window to close or open the inner passage downstream of the window, a blower in each of said passages, and a control unit for giving instructions to the blowers and the passage change-over device for their operation, the control unit instructing the blowers to move air through the two passages in a first direction when at least the inner passage heat exchanger is operating for refrigeration and the control means instructing the passage change-over means to open the window and cause the blowers to operate to direct a part of the air flowing in the outer passage to flow through the open window into the inner passage and its heat exchanger in a second direction which is opposite to the first direction.

Low-temperature showcase

A low-temperature showcase comprises a heat insulated wall, on the top of which an opening for putting-into or taking-out commodities is formed. The inside of the heat insulated wall is divided into an air passage and a storage chamber thereover by a dividing plate which is installed inside this heat insulated wall in a nearly horizontal fashion. The air passage is formed in a manner that the cross-section thereof is of a U-shape, and the storage chamber is formed surrounded by this air passage. At both ends of the air passage, vent ports are formed at the positions facing each other through the opening of the heat insulated wall inbetween. The air passage is divided into two parts by a fan case corresponding to the respective vent ports and a blast fan which can rotate reversibly is supported by this fan case. In each halved air passage, an evaporator is installed in the vicinity of the vent port, and when one of the evaporators is put in cooling operation, the other evaporator is subjected to defrosting. An electric heater is installed between each vent port and each evaporator, and these electric heaters are energized when the corresponding evaporator is to be defrosted. By means of a thermo-switch, energizing of the electric heater is stopped when the air temperature in the air passage rises above a predetermined valve during energizing the electric heater.

A low-temperature showcase comprises a heat insulated wall, on the top of which an opening for putting-into or taking-out commodities is formed. The inside of the heat insulated wall is divided into an air passage and a storage chamber thereover by a dividing plate which is installed inside this heat insulated wall in a nearly horizontal fashion. The air passage is formed in a manner that the cross-section thereof is of a U-shape, and the storage chamber is formed surrounded by this air passage. At both ends of the air passage, vent ports are formed at the positions facing each other through the opening of the heat insulated wall inbetween. The air passage is divided into two parts by a fan case corresponding to the respective vent ports and a blast fan which can rotate reversibly is supported by this fan case. In each halved air passage, an evaporator is installed in the vicinity of the vent port, and when one of the evaporators is put in cooling operation, the other evaporator is subjected to defrosting. An electric heater is installed between each vent port and each evaporator, and these electric heaters are energized when the corresponding evaporator is to be defrosted. By means of a thermo-switch, energizing of the electric heater is stopped when the air temperature in the air passage rises above a predetermined value during energizing the electric heater.

A low-temperature showcase in which a double air curtain can be formed for commodity inlet-outlet opening provided in one side of its main body comprising: a heat exchanger in an inner passage being positioned upstream of and at a predetermined distance from another heat exchanger in an outer passage with respect to the same direction of air flows, a partition wall defining the inner and outer passages and having a first window at a portion thereof between the two heat exchangers, a closure plate for opening or closing the first window to close or open the inner passage downstream of the first window, and first control unit for giving instructions to the closure plate for its operation, the first control unit being operative to instruct the closure plate to open the first window and close the inner passage downstream of the first window when the heat exchanger in the inner passage is operated for defrosting with the heat exchanger in the outer passage operated for refrigeration, whereby the air flow through the heat exchanger in the inner passage is guided into the outer passage through the opened first window and cooled by being passed through the heat exchanger in the outer passage.

Growing community of inventors

Ota, Japan

Tsutomu Tanaka