Canon Kabushiki Kaisha

Hitachi, Ltd.

Akira Ashida

Kiyoshi Takahashi

Hiroyuki Takimoto

Takashi Itani

Masaya Maeda

Kuniyoshi Suzaki

Tateo Yamada

Kazuya Hosoe

Yoshio Komine

Katsuya Ebara

Kazuo Ishikawa

Hideaki Kurokawa

Shunji Mohri

Kenji Mitani

Kiyoshi Takasashi

Takashi Yamada

Kuniyoshi Suzuki

A distillation apparatus includes a distillation unit for distilling feed water. The distillation unit includes an evaporation part, a condensation part and a hydrophobic porous membrane interposed between the evaporation part and the condensation part, which are integrated with one another. A heating unit for heating the feed water and a cooling portion for cooling distillate produced by distillation of the feed water are provided apart from the distillation unit. One or both of the heating unit and the cooling unit are provided with a heat pump. With this construction, an additional heater does not need to be provided, and the distillation unit and both of the heating unit and the cooling unit can be changed in size and performance independently of each other, so that the overall size of the distillation apparatus can be reduced.

Distillation apparatus with porous membrane and heat pump

In a robot having a servo control section for driving an actuator, an arithmetic operating unit, memories, and input and output devices, a method and apparatus provide teaching data from one robot to another. First, there is detection of mechanism errors peculiar to a particular robot of interest. Standard position information obtained from the result of a teaching operation and compensation of the mechanism errors of another robot is used with the mechanism errors of the particular robot to calculate the corrected standard position information (teaching data for the particular robot). This information is derived by subtracting the mechansim errors of the particular robot from that standard position information to produce the teaching data for the particular robot.

Method and apparatus for generating and applying common teaching data of

The present invention is a phase-locked circuit for use in digital circuits such as a high frequency clock generator, counter and memory. The circuit provides an output which is locked to the received input tone signal in both frequency and phase. The circuit includes an oscillator for generating a clock signal having a frequency higher than the frequency of an input signal; a phase information extractor for extracting phase information corresponding to the period of the input signal and forming a pulse train based on the phase information; an average period count/storage circuit for measuring an available period of input signal by counting the number of pulses of said clock signal during an interval of a predetermined number of input periods obtained by counting pulses of the pulse train based on said phase information and storing the count; a programmable counter for dividing the frequency of said clock signal in accordance with the stored count and providing an output signal; and a phase comparison/correction means for comparing said output signal with the phase information of said input signal, and producing a phase correction signal as a result of said comparison; whereby said programmable counter increases or decreases said stored count in accordance with said phase correction signal to modify the phase of said output signal.

Clock extraction circuit using an oscillator and phase-locked

This invention relates to a clock deriving system as described below. At a base radio station, data is converted to a Manchester code and modulated into an FM, PM or AM radio wave. This radio wave is received by the antenna of a radio receiving apparatus and amplified and demodulated by a radio receiver of the apparatus into the base band signal of the Manchester code form. This signal is amplified and sliced by a limiter amplifier and then supplied to a clock derivation circuit where a useful clock component is derived. This clock component is passed through a filter of a necessary clock frequency band, from which clock information is produced. This clock information is applied to a phase detector where the output clock signal from a digital PLL and the input clock information are compared in phase, that is, detection is made of whether the former is ahead of or behind the latter. If the former signal is ahead of the latter, the phase detector produces '1', whereas if the former is behind the latter, the detector produces '0'. As a result, the digital PLL adjusts the phase of the incorporated clock oscillator therein, thereby deriving the clock signal of the input data.

Clock derivation circuits

The level of a received data bit is detected at multiple instants which are determined by a clock signal having a frequency higher than that of the data bits to be received. Discrimination of the received data is carried out by considering the bit pattern of the preceding and succeeding bits with respect to the received data, on the basis of the count number of the multiple instants at which the detected levels of the received data bit fall within a specified condition. The reference level for the level detection at the multiple instants, the gate time for allowing the counting of the multiple instants and/or the threshold count number for the discrimination are altered to surely discriminate the levels of the received data bits.

Discrimination circuit for received data

A clock deriving system is disclosed. At a base radio station, data is converted to a Manchester code and modulated into an FM, PM or AM radio wave. This radio wave is received by the antenna of a radio receiving apparatus and amplified and demodulated by radio receiver of the apparatus into the base band signal of the Manchester code form. This signal is amplified and sliced by a limiter amplifier and then supplied to a clock derivation circuit where an effective clock component is derived. This clock component is passed through a filter of a necessary clock frequency band, from which clock information is produced. This clock information is applied to a phase detector where the output clock signal from a digital PLL and the input clock information are compared in phase, that is, detection is made of whether the former is ahead of or behind the latter. If the former signal is ahead of the latter, the phase detector produces '1', whereas if the former is behind the latter, the detector produces '0'. As a result, the digital PLL adjusts the phase of the incorporated clock oscillator therein, thereby deriving the clock signal of the input data.

Clock signal derivation system

A sound motion picture projection system which can be formed by a combination of a silent film projector and a sound recording and reproducing unit, wherein a silent film projector and a separate sound recording and reproducing unit are provided and minor modification is given to said silent film projector so that said silent film projector can be used as a projection unit only with said minor modification. And especially in this system when said sound unit is attached to said projection unit and continuous film advancing means provided at said sound unit is connected with a driving motor provided at said projection unit through a power transmission mechanism, and at a same time an intermittent film advancing means provided at a projection unit is connected with a part of said power transmission mechanism through a power transmission mechanism of variable speed type, further an output member of a loop sensing means provided at the sound unit is connected with said variable speed power transmission mechanism, so that an operating speed of the intermittent film advancing means at the projection unit is controlled depending on the change in an amount of film loop formed between a projection station of the projection unit and a sound recording and a reproducing station of the sound unit.

Sound motion picture projection system

Disclosed is a sound motion picture projection apparatus in which a head pad is urged by a spring member toward a film pressing position at which position the head pad presses a film against a magnetic head disposed along the sound recording and reproducing film path. The apparatus has a set mechanism of the self-holding type which sets the head pad against the urging force of the spring member to a film pressure releasing position at which position the head pad releases the pressing of the film, by the driving force of a driving motor and keeps the head pad to that position. The apparatus further has a film detecting member which is disposed in said sound film path after the magnetic head and operatively connected with the set mechanism in such a manner that the holding of the head pad at the film pressure releasing position by means of the set mechanism is released when the film detecting member detects the film introduced into the sound film path and thereafter the setting operation of the set mechanism is made ineffective as long as the film detecting member detects that a film exists in the sound film path. Thereby when the set mechanism is driven by the driving motor when no film exists at least in the sound film path, the head pad is automatically set to the film pressure releasing position and then the head pad is automatically changed from the film pressure releasing position to the film pressing position when the film detecting member detects the introduction of the film into the sound film path.

Sound motion picture projection apparatus

The present invention relates to a lens unit construction for motion picture and other type projectors. The unit is provided with a motion picture projecting lens construction, a mantle cover to be fixed on the fixing position of the motion picture projector body, a guide device for slidingly guiding and holding the lens construction holding device on the device plate in such a manner that the construction holding device is slidable only along the direction of the optical axis of the lens construction and an adjusting device for operating the slide motion of the construction holding device. The construction holding device or the adjusting device is provided with a cam follower pin while the other is provided with a focus adjusting cam groove in which the cam follower pin is engaged. An engaging device guides the cam follower pin so that it can be easily introduced into the cam groove at the time of assembling the construction holding device with the adjusting device to form one body and for preventing the cam follower pin from being easily brought out of the cam groove in such a manner that the construction holding device is cooperatively coupled with the adjusting device.

Lens unit for motion picture projector and others

A sound motion picture projection apparatus provided with pressure pad means operable to press a film against magnetic sound recording and reproducing head means disposed along a path of the film for sound recording and/or reproduction. Urging means urge the pressure pad means toward its film pressing position. Externally operable means are provided for shifting the pressure pad means from its film pressing position to a released position against the urging force of the urging means. Releasable locking means are provided for holding the pressure pad means in the released position against the urging force of the urging means; and film detecting means are disposed in said sound film path behind the magnetic head means to detect introduction of the film into the sound film path and to release the locking of the pressure pad means by the locking means. Thereby, when film introduction into the film path for sound recording and/or reproduction is detected by the film detecting means, the pressure pad means is automatically changed from the released position to the film pressing position.

The present invention relates to a cine-projector so designed as to carry out the motion picture projection, the still picture projection, the quick film feeding as well as winding up by simultaneously controling the first clutch mechanism for selectively interrupting the engagement of the driving ower transmission mechanism with the feeding shaft rotated by means of the driving power of a motor rotating along a single direction through the driving power transmission mechanism by means of the translation mechanism to be translated at least into three positions in functional engagement with the operation mode change over mechanism for changing over the operation mode of the cine-projector, the second clutch mechanism for selectively interrupting the engagement of the driving power transmission mechanism with the winding up shaft rotated along the inversed direction as that of the above mentioned feeding shaft by means of the driving power of the above mentioned motor through the driving power transmission mechanism, the first control mechanism for controling the efficiency of the mechanism for intermittently feeding the film at the projection part and the second control mechanism for controling the binding mechanism for semi-compulsorily binding the film at the projecton part.

Cine-projector

A motion picture projector having various functions such as, projecting and rewinding, all of which can be selectively performed by a single control knob, and including an intermittent-drive film advancing mechanism which comprises a pull-down structure, a compound cam of an up-and-down cam wheel and an in-and-out cam disk, and first and second cam followers arranged between the pull-down structure and the compound cam to be consecutively operated so that the pull-down claw enters the perforations of the film and moves it in a forward direction always by the length of a frame and at a desired frequency through a film gate mechanism. The film gate mechanism consists of a film guideway, a resilient thin aperture plate self-biased to move away from the film guideway and defining an actual projection aperture, and a movable film gate member arranged on the opposite side of the aperture plate from the guideway and biased to urge the aperture plate for guidance and support of the film against the guideway. The pull-down structure and the film gate member have respective input means arranged to be consecutively actuable by a common mode changeover means cooperative with the control knob. The mode changeover means has at least three switched positions, that is, a first position for a normal projecting operation, a second position where the pull-down structure is maintained disengaged from the in-and-out cam follower to project a still picture, and a third position where the film gate member and the aperture plate are spaced from the film guideway to permit continuous transportation of the film at a far faster speed than that occurring in the normal projecting mode of operation.

Motion picture projector

The present invention relates to a synchronization system of a cine-projector with a sound tape reproducer. It is characterized in that the phase of a signal corresponding to the film feeding speed of the film projector and that of a signal corresponding to the standard speed coming from the sound tape reproducer are compared with each other so as to control the film feeding speed of the cine-projector by means of the comparison output corresponding to the phase difference. In order to accomplish this, between the driving source for driving the internal mechanism of the cine-projector and the driving member for the internal mechanism, a transmission speed varying mechanism is provided in such a manner that the transmission speed varying mechanism is controlled by means of the film speed control driving source to be driven by the comparison output so as to maintain the synchronized state.

Synchronization system of the cine-projector with the sound tape

This specification discloses a motion picture projector device as audio-visual aid and an audio-visual system using the same. The device uses a film structure including an image information recording zone, a row of perforations along one side edge of the film, and a balance zone juxtaposed with said row of perforations along the one side edge of the film and having various signals recorded thereon in a straight line. These signals include a non-normal projection mode speech information signal, a transfer instruction signal for instructing the transfer of said non-normal projection mode speech signal to a record information member, a transfer stop instruction signal for stopping the transfer, and a reproduce instruction signal for instructing a reproduce mechanism to reproduce the non-normal projection mode speech information signal transferred to said record member. The film structure further includes, on the other side edge thereof, a normal projection mode speech information recording zone which may be reproduced by another reproduce mechanism during normal projection mode. The signals recorded on the balance zone of the audio-visual film structure may be transferred to said record information member during normal projection mode. The signals transferred to the record information member may be reproduced during non-normal projection mode.

Motion picture projector device as audio-visual aid and audio-visual

A film handling system to with which a film cartridge is commonly usable in each step of exposure, processing (developing) and projection of the film housed therein, wherein a safety means which advances the above mentioned film cartridge through each step in which it is used in a prescribed sequence is provided. Further an electric circuit which controls the above mentioned handling system in such manner as to activate said system according to the output of the safety means is provided so that such erroneous handling as occurs when processing or projecting unexposed film by mistake or by projecting unprocessed film can be automatically prevented.

Growing community of inventors

Yokohama, Japan

Akira Ashida