A stereophonic reproducing system having left signal and right signal channels and impedance provided between the two channels, whereby steady acoustic effects of 4-channel stereo may be simply obtained from 2-channel stereophonic signals.

A system for reproducing video signals recorded on a magnetic recording medium as a suppressed-carrier modulated signal in which the video information is carried primarily on only one sideband and the frequency of the suppressed carrier is within the band occupied by the video signals prior to modulation. Jitter components in the reproduced signals are substantially cancelled out.

In the case that an analog signal is recorded or reproduced by using a sensor and recording medium relatively moving against the sensor, a sampling signal is generated which is adapted to have a frequency thereof deviated dependently upon an amount of wow and flutter caused by fluctuations in the speed of the relative motion therebetween. A reproduced signal is sampled by means of the sampling signal and, a sampled signal is stored in a memory. After this, a stored contents in the memory are rea...

Improved sampling clock reproducing apparatus for receiving digital signal which is superimposed in the television signal during a vertical blanking interval. The sampling clock signal is made by selectively gating a pilot signal from the superimposed signal, obtaining a square thereof, then passing it through a resonance circuit with a resonance frequency twice a repetition frequency of the pilot signal. Thus, the sampling clock signal of the frequency twice the repetition frequency of the pilo...

A reproducing objective for video disks comprising five single lenses for which the working distance is large and flatness of image and resolving power are high.

A sorting apparatus and reproducing machine comprising a plurality of sheet receiving bins supported in a first frame. A sheet transport is supported in a second frame. The frames are arranged for relative movement between a first closed position wherein the transport is operatively associated with the bins and a second open position to provide access to the transport and the bins for sheet clearance. The second frame supports a guide member for guiding a sheet along the transport. The guide mem...

A recorded disk preproducing system in which a signal pattern recorded on a master disk is transferred to a reproducing disk positioned in close contact with the master disk upon exposure to flashing light. The master disk includes a thin film of a light screening material such as in organic compound, chalcogen compound, or the like formed on a transparent glass substrate, and an information signal is recorded on the thin film as a pattern of varied light transmission. The reproducing disk has a...

A magnetic recording and reproducing system comprises a capstan, reel shafts, a motor for rotatably driving said capstan and said reel shafts, a magnetic tape wound up by the rotation of the reel shafts, a pinch roller for pressing the tape against the capstan, and a drive mechanism for driving said pinch roller into engagement with and disengagement from said capstan by a rotation force of said motor.

Disclosed is a flywheel assembly for recording and or reproducing devices which is produced by molding and sintering a mixture consisting principally of iron and graphite powders and, if necessary, a sulfur powder.

A unit for use in coupling a pair of loudspeakers to an amplifier having two channels comprises a transformer having a first winding and a second winding, one end of a first winding having a first connection device for connecting the first winding in series with one of the loudspeakers, one end of the second winding having a second connection device for connecting the second winding in series with the other of the loudspeakers, the windings being electrically connected asymmetrically, and the ot...