The present invention relates to a novel record player adapted for toys. The record player has a casing with a lid pivotally mounted to the upper surface. A turntable with a phonograph record attached thereto is rotatably secured to the underface of the lid. A pickup is mounted within the casing to allow a stylus to be reciprocatively movable along the grooves in the downward facing record. A mechanism for harmonizing the stylus pressure is provided on the upper portion of the casing consisting ...

A magnetic recording-reproducing device operable by selective depression of various operating buttons and a manual switch in various modes. A reproduce button and a rewind button or a fast-forward button may be simultaneously locked in operative positions. A review mode is attained by the depression of the fast-forward button when the reproduce button is kept locked in the operative position. A cue mode is attained by the depression of the fast-forward button when the reproduce button is kept lo...

An electrostatographic printing machine in which a plurality of transparencies are reproduced simultaneously on a common copy sheet. The printing machine utilizes a pair of slide projectors arranged so that they simultaneously project non-over-lapping light images of the transparencies onto the charged portion of the photoconductive member.

A reproducing objective for video disks comprising a first, second, third and fourth lenses in which the first lens is a biconvex lens, the second lens is a negative meniscus lens, and the third and fourth lenses are positive lenses and for which the working distance is large, flatness of image is high, resolving power is high and weight is extremely light.

A reproducing stylus traces a track of a recording medium, in which track an information signal is recorded as variations of geometrical shape, and reproduces as variations in capacitance the information signal thus recorded. The reproducing stylus comprises a reproducing stylus main structure having a tip part with a flat sliding contact face for slidingly contacting at least one track of the recording medium at a time, and an electrode secured to the reproducing stylus main structure at the ti...

Apparatus for recording and/or reproducing a SECAM composite color television signal in parallel tracks on a record medium. The luminance and chrominance components of the SECAM television signal are separated from each other, and then the luminance component is modulated to a higher frequency range while the chrominance component is frequency-converted to a lower frequency range. These frequency-modified components are recombined and recorded. In frequency-converting the chrominance component, ...

A cone speaker is mounted to a horn within a reflex chamber behind a forward opening through the chamber, and the forward end of a horn is attached to the opening. The speaker is connected in the entrance discharging rearwardly into the chamber, and forwardly into the horn. The horn includes a restriction between the forward end of the horn and the speaker, and ports are formed through the horn, entering the restriction.

A binaural sound reproducing system includes a transducer for translating the recorded binaural information into an electrical signal on each of separate channels and a convolution integrator on each separate channel connected to receive the output from the transducer to compensate for acoustical differences resulting from the facial difference between the dummy head used for recording the binaural signal and a particular listener.

A reproduced PCM signal in the form of continuous frames is subjected to a code check after the separation of its frame synchronizing signals and then stored in a memory. If more than two consecutive frames are determined to include code errors resulting from a spliced portion of the associated PCM magnetic tape than those frames are prevented from being written into the memory but the latter is continuously read out by skipping the lost data and reading other data stored in the memory. Also the...

A magnetic record reproducing system preamplifier includes an inductive choke in the emitter circuit of a first stage transistor amplifier whereby to provide a frequency responsive variable input impedance whereby to maintain a proper impedance relationship between the inductive transducer and the input impedance of the first stage amplifier. A second stage transistor amplifier is connected to the output of the first stage amplifier in cascode relationship, reducing the effective voltage gain of...