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    • 2. 发明专利
    • DE3582716D1
    • 1991-06-06
    • DE3582716
    • 1985-10-30
    • HITACHI LTD
    • TSUKUI TSUTOMUYASUKAWA SABUROSHIMIZU TOSHIODOI RYOTAYAMAGUCHI MOTOOIWAASA SHUZOU
    • H01M8/04
    • A liquid fuel cell having a circulation system for a fuel mixture comprising fuel and water, which comprises a first tank (101) containing water or a water-rich fuel mixture comprising water and fuel, a second tank (102) containing fuel or a fuel-rich mixture comprising water and fuel, a first detector (12) for detecting the liquid level of the fuel mixture in the circulation system, a second detector (13) for detecting a fuel concentration of the fuel mixture in the circulation system, or an output from the fuel cell, or a load current of the fuel cell, a valve means (111) for controlling flow of the water or the water-rich mixture in the first tank to the circulation system in accordance with the output from the first detector (12), and a valve means (112) for controlling flow of the fuel or the fuel-rich mixture in the second tank (102) to the circulation system in accordance with the output from the second detector (13). The liquid fuel cell can be stably and efficiently operated for a prolonged time in spite of different consumption rates of fuel and water even if the load current or operating temperature of the fuel cell or the temperature or humidity of the atmosphere is changed.
    • 3. 发明专利
    • LIQUID FUEL CELL
    • CA1257647A
    • 1989-07-18
    • CA494271
    • 1985-10-30
    • HITACHI LTD
    • TSUKUI TSUTOMUYASUKAWA SABUROSHIMIZU TOSHIODOI RYOTAYAMAGUCHI MOTOOIWAASA SHUZOU
    • H01M8/04
    • A liquid fuel cell having a circulation system for a fuel mixture comprising fuel and water, which comprises a first tank containing water or a water-rich fuel mixture comprising water and fuel, a second tank containing fuel or a fuel-rich mixture comprising water and fuel, a first detector for detecting the liquid level of the fuel mixture in the circulation system, a second detector for detecting a fuel concentration of the fuel mixture in the circulation system, or an output from the fuel cell, or a load current of the fuel cell, a valve means for controlling flow of the water or the water-rich mixture in the first tank to the circulation system in accordance with the output from the first detector, and a valve means for controlling flow of the fuel or the fuelrich mixture in the second tank to the circulation system in accordance with the output from the second detector, can be stably and efficiently operated for a prolonged time in spite of different consumption rates of fuel and water even if the load current or operating temperature of the fuel cell or the temperature or humidity of the atmosphere is changed.
    • 8. 发明专利
    • DE68922923T2
    • 1995-11-23
    • DE68922923
    • 1989-03-06
    • HITACHI LTD
    • NAKASHIMA KEISUKEYASUKAWA SABUROTADAUCHI MASAHARUHORI YASURO
    • H04N1/401H04N1/40H04N1/46H04N1/48H04N1/56H04N1/64
    • A multi-colour document reading apparatus used in a facsimile apparatus for reading a document disposed at a predetermined position ad containing pictures of multiple colours on a line-by-line basis while identifying discriminatively the colours comprises an image sensor (6) for sensing optical images in a predetermined portion including at least one line of the document (4; 20) disposed at the predetermined position, light sources (1; 2) for illuminating at least the predetermined portion selectively in one of first and second energized states differing from each other in respect to the spectral characteristics, a switch circuit (7) for energizing the light sources (1; 2) selectively for illuminating the document (4; 20) in one of the first and second states, a distortion correcting circuit (8) including memories (1708, 1709; 5061, 5069) for storing first and second shading waveforms derived from data sensed by the image sensor (6) for optical images of a standard sheet (91) of a specific colour disposed at the predetermined position and illuminated by the light source (1; 2) in the first and second energized states, respectively, reading circuits (1702, 1704; 1706, 1707) for reading out the first and second waveforms from the memories (1708, 1709) when the document (4; 20) is being read by the image sensor (6) on the line-by-line basis, a correcting circuit (MPU, 501) for correcting first and second line data detected by the image sensor from the optical image on one line of the document illuminated by the light sources in the first and second states with the aid of the first and second shading waveforms read out from the memories, respectively, and a colour separating circuit (9) for identifying discriminatively data of different colours of the multi-colour pictures included in one line of the document for thereby generating colour-separated picture signals representing the pictures of different colours. A facsimile system employing the multi-colour document reader.
    • 9. 发明专利
    • DE68922923D1
    • 1995-07-13
    • DE68922923
    • 1989-03-06
    • HITACHI LTD
    • NAKASHIMA KEISUKEYASUKAWA SABUROTADAUCHI MASAHARUHORI YASURO
    • H04N1/401H04N1/40H04N1/46H04N1/48H04N1/56H04N1/64
    • A multi-colour document reading apparatus used in a facsimile apparatus for reading a document disposed at a predetermined position ad containing pictures of multiple colours on a line-by-line basis while identifying discriminatively the colours comprises an image sensor (6) for sensing optical images in a predetermined portion including at least one line of the document (4; 20) disposed at the predetermined position, light sources (1; 2) for illuminating at least the predetermined portion selectively in one of first and second energized states differing from each other in respect to the spectral characteristics, a switch circuit (7) for energizing the light sources (1; 2) selectively for illuminating the document (4; 20) in one of the first and second states, a distortion correcting circuit (8) including memories (1708, 1709; 5061, 5069) for storing first and second shading waveforms derived from data sensed by the image sensor (6) for optical images of a standard sheet (91) of a specific colour disposed at the predetermined position and illuminated by the light source (1; 2) in the first and second energized states, respectively, reading circuits (1702, 1704; 1706, 1707) for reading out the first and second waveforms from the memories (1708, 1709) when the document (4; 20) is being read by the image sensor (6) on the line-by-line basis, a correcting circuit (MPU, 501) for correcting first and second line data detected by the image sensor from the optical image on one line of the document illuminated by the light sources in the first and second states with the aid of the first and second shading waveforms read out from the memories, respectively, and a colour separating circuit (9) for identifying discriminatively data of different colours of the multi-colour pictures included in one line of the document for thereby generating colour-separated picture signals representing the pictures of different colours. A facsimile system employing the multi-colour document reader.