专利检索_..结合录音的专利检索_..结合录音的专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
181	Process for the production of silverless photographic picture and sound records	GB3231237	1937-11-24	GB506271A	1939-05-24
506,271. Chromated-colloid processes. NITRITFABRIK AKT.-GES. Nov. 24,1937, No. 32312. Convention date, Dec. 1, 1936. Drawings to Specification. [Class 98 (ii)] A photographic silver-free picture and sound record is produced by printing a silver image made in the straight part of the density curve of the photographic sensitive material employed in its production on to a chromate-sensitized layer using the toe of the density curve of the exposed and dyed chromate-sensitized layer.
182		DEI0038275	1929-06-05	DE673979C	1939-04-01	HEYMER DR GERD

183	Improvements in or relating to processes for printing sound films	GB233237	1937-01-26	GB486221A	1938-06-01
486,221. Sound records. BRITISH OZAPHANE, Ltd. Jan. 26, 1937, No. 2332. Convention date, Jan. 27, 1936. [Class 98 (ii)] Sound-films produced by a mechanical engraving process. e.g. by the use of a graving tool which cuts a transparent track in an opaque layer on a film, are copied by diffused light onto a layer sensitized by means of a diazo compound which is destroyed by light, with or without a phenol, using a time of exposure sufficient to destroy the diazo compound completely in the exposed parts. Alternatively, a second exposure to uniform light may be given after printing. An overexposure or supplementary exposure amounting to 25 per cent of the normal exposure may be used. The process may be used for printing from a copy of the original mechanical record on a silver bromide layer. Films of regenerated cellulose sensitized in the mass or on one side only may be used.
184	An improved process for the production of lenticular colour and sound films	GB84437	1937-01-11	GB471092A	1937-08-27
471,092. Kinematograph picture and sound films. SIEMENS & HALSKE AKT.- GES. Jan. 11, 1937, No. 844. Convention date, Jan. 9, 1936. [Class 98 (ii)] To produce combined lenticular colour and sound films, an original picture film is developed as a positive by the reversal process and an original sound film is developed as a separate negative and both are then copied on to the same lenticular copy film which is developed by reversal. The picture film may be copied by projection printing and the sound film by contact printing.
185		FR813893D	1936-11-24	FR813893A	1937-06-10

186		FR808943D	1936-07-30	FR808943A	1937-02-18

187		FR804805D	1936-04-03	FR804805A	1936-11-03

188		FR802420D	1936-02-26	FR802420A	1936-09-04

189	Improvements in the reproduction of sound films	GB917234	1934-03-23	GB435474A	1935-09-23
435,474. Optical sound -reproducing apparatus. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort - on - Main, Germany. March 23, 1934, No. 9172. Convention date, March 23, 1933. [Class 40 (ii)] A sound-film of the lenticular type is wetted with a non-inflammable liquid, (having substantially the same refractive index as that of the film), whilst or before it is passed through the reproducing-apparatus, noise due to friction caused by the embossed face of the film being thereby prevented or minimized. A volatile liquid, such as carbon tetrachloride, is preferably used ; or an oil which may be removed from the film by a solvent may be used. The liquid may be applied by a pad, roller, or nozzle.
190		FR787435D	1935-03-15	FR787435A	1935-09-23

191		DET0041743		DE617102C	1935-08-12

192	Improvements in recording sound photographically	GB296834	1934-01-29	GB432505A	1935-07-29
432,505. Photographic sound-records. I. G. FARBENINDUSTRIE AKT. - GES., Frankfort-on-Main, Germany. Jan. 29, 1934, No. 2968. Convention date, Jan. 28, 1933. Drawings to Specification. [Class 40 (ii)] A process of producing sound-records on a film adapted to be developed by the reversal method, comprises projecting on to the film an image of a source of light modulated in accordance with the sound, and arranging that the maximum exposure produces a density not exceeding about 1À8 units, means being adopted so that, after reversal, a minimum density due only to fog would be obtained with a maximum density of about 1À8 in the recording of sound. The means adopted may consist of an additional treatment of the film, such as a preliminary exposure, the extent of which is such that parts of the film given also the maximum density of 1À8 during exposure will, in the reversed film, be of the desired minimum density. Alternatively, it may be arranged that only part of the unchanged silver bromide, which is left after the first development, is used for the production of the final soundrecord. In such a case, a reduction of the residual silver bromide may be effected by treatment in a fixing bath prior to the second development. In another method, the desired minimum density is produced by controlling the second development or second exposure. In the latter case, a source of light, which, when operated at a voltage of 220 effects the full exposure for a normal reversal process, may be operated at 120 volts so that a minimum density due only to fog is obtained. As applied to variable density recording, the highest density is given only such a value (in any case below 1À8) that after the second exposure the minimum blackening lies so much above the density due to fog that the corresponding value of the transparency still lies on the rectilinear part of the transparency curve. According to a further process, the sound is recorded on photographic layers which have so low a silver content, or are so thin, that the silver halide contained therein suffices only to produce a density of about 1À8 after the first development when the film is exposed throughout the thickness of the photographic layer.
193		DE607284D		DE607284C	1934-12-20

194	Improvements in or relating to the manufacture of sound and picture films	GB1626733	1933-06-06	GB411678A	1934-06-14
411,678. Associated sound and picture films. DEHN, F. B., 103, Kingsway, London.-(Internationale Tobis Maatschappij Naamlooze Vennootschap ; 305, Keizersgracht, Amsterdam.) June 6, 1933, No. 16267. [Class 40 (ii).] A method of manufacturing sound and picture films in which separate films are employed for the two records and the two films are developed for the same time in the same developer, is characterized in that the emulsions on the two films are so selected that after development the desired gradation value is obtained for each record. The developed sound and picture films are copied on to a common positive. The material used for the picture film may be Kodak super-sensitive panchromatic material, and that for the sound film may be Kodak positive material. Reference has been directed by the Comptroller to Specifications 318,508, [Class 40 (ii)], and 371,902.
195		FR764568D	1932-08-10	FR764568A	1934-05-24

196		FR757985D	1933-07-04	FR757985A	1934-01-08

197		FR753034D	1933-03-23	FR753034A	1933-10-05

198		FR749879D	1933-01-31	FR749879A	1933-08-01

199		DE564943D	1930-07-19	DE564943C	1932-11-24

200	Improvements in combined sound and picture records on kinematograph positive films and in processes for the production thereof	GB1470531	1931-05-19	GB378915A	1932-08-19
378,915. Combined sound and picture films. THORNTON, J. E., 8, Hill Street, Jersey, Channel Islands. May 19, 1931, No. 14705. Addition to 378,514. [Class 40 (ii).] A modification of the invention described in the parent Specification, wherein a combined sound and picture positive film has the sound record printed thereon by photographic means after the pictures have been printed thereon by any process, developed and completed, consists in printing the sound record on the completed picture film by a mechanical process only. This printing of the sound record may be applied to the colloid layer or layers of the pictures or directly on a clear track left on the celluloid or like film, and may be effected by a printing plate or strip printing by the relief, intaglio or offset method, or by stencils. Specifications 5100/15, 316,338, 316,339, 316,367 and 316,388, [all in Class 98 (ii), Photographic processes &c.], are referred to as describing various methods of preparing and using the printing plate, strip or stencil for printing the sound record.

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