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US4346418A
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High density multitrack magnetic head
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US4343026A
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Magnetoresistive head employing field feedback
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US4330807A
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Magnetic playback apparatus having immunity to skew
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US4334247A
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Apparatus useful for converting asynchronous video information to synchronous video information
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US4338514A
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Apparatus for controlling exposure of a solid state image sensor array
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US4323934A
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Dropout compensation circuitry
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US4346417A
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Selectively actuable magnetic head
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US4322763A
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Magnetic head having a controllable high-permeability tunnel within a low-permeability sleeve
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US4318136A
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Magnetic recording apparatus and method
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US4324631A
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Magnetron sputtering of magnetic materials
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US4299678A
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Magnetic target plate for use in magnetron sputtering of magnetic films
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US4306215A
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Thin magnetoresistive head
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US4287539A
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Segmented video recording with segment identification codes
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US4290087A
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Coarse and fine control of segmented video playback apparatus with ancillary recording medium
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US4251910A
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Method of making multitrack magnetic heads
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US4256996A
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Web transport system
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US4227129A
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Apparatus for detecting the speed of an electric motor
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US4372036A
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Method of manufacturing a single-track video ferrite record/reproduce head
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US4158213A
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Multitrack magnetic heads
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US4193098A
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Segmented video playback apparatus with ancillary recording medium
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