An appliance for recording information on media such as precut receiving cards. The appliance includes an "in" tray, an "out" tray, a recording area, preferably a recording instrument and a holder for it, a card guidance system, at least partly separate, linking the recording area to each tray, and preferably means of attaching a reading table.

A demodulation system for digital information, recorded by an FM or PM system, which provides a clock output pulse whose pulse width is proportional to the time length of the preceding bit frame and said clock output signal is utilized for demodulating the recorded data. Said pulse width can be controlled either by an analog or a digital circuit and thus, the present invention has the advantage that the information is demodulated stably though the moving speed of the recording medium is changed ...

An information displaying apparatus includes, bundles of optical fibers with their ends coplanar and disposed in line. A movable masking member imposes information on the light input to the fiber array. At the output end, information markings are selectively illuminated or otherwise luminously designated to display various kinds of information. Displaying means may be disposed within a view finder or on the outer casing of a camera. An artificial light source operates to provide light through th...

Circular dichroism within absorption bands of nematic liquid crystalline compositions of positive dielectric anisotropy in the twisted nematic structure is utilized for information transfer applications.

A coded information-reading device which comprises means for measuring the time of reading out a given piece of coded information consisting of a prescribed number of bits by determining a length of time required to read out two reading speed-detecting signals impressed immediately before and after said piece of coded information; means for dividing the determined reading time by said prescribed number of bits to measure the average per-bit reading time; and means for generating synchronizing cl...

Methods and apparatus for recording and subsequently reproducing video information at a display scan rate record image fields or other video signal quanta on a recording medium at a first relative recording medium velocity and in accordance with a predetermined arithmetic progression. The recorded image fields or other video signal quanta are reproduced at a second relative velocity being higher than the first velocity so that the reproduced video signal quanta are synchronized at the display sc...

Original information is converted to digital signals and recorded on a digital signal recording medium such as a paper tape. The digital signal recorded on the tape or the like is converted to binary signals. A photosensitive material is fed in synchronization with the conversion of the digital signal to binary signals. The photosensitive material is exposed to light from a light source controlled in accordance with the binary signals. In a preferred embodiment of the invention, a print out type...

An information writing device is used to write information on a card such as magnetic card. Information to be written on a card is manually fed into the device through a keyboard. The card may be reciprocated through a driving unit to write information thereon during its forward stroke and to read out the information during its backward stroke. The information read out is collated with the input one to visually indicate resulting coincidence or non-coincidence thereof.

A tape cassette which automatically brings the tape into direct engagement with the detection head and into indirect engagement with the drive wheel of a machine when the tape cassette is pushed in one direction into the machine. Disposed in the cassette is a rotary roller which is brought, at the flanges provided on its outer periphery, into engagement with the drive wheel and driven thereby. The rotary roller cooperates with other guide members to maintain at the appropriate tension an endless...

An apparatus for receiving electronic signals and embossing modulated grooves on a carrier medium as a function of the received signals, includes a support for supporting an embossing assembly and a carrier medium in spaced relationship therewith, as well as apparatus for causing relative motion between the carrier medium and the embossing assembly. In accordance with the invention there is provided a wafer of piezoelectric material affixed to the mount, the wafer having electrodes for applicati...