A coded key cutting device for cutting key blanks using the manufacturer's code is comprised of a pair of movable carriage assemblies that index a key blank secured to one of the carriage assemblies under a punch cutter. Each of the assemblies is movably indexed according to an interchangeable cam depending on the manufacturer's code. The key blank is positioned for longitudinal and transverse movement under the punch so that a series of spaced notches can be made in the key blank.

A novel combination of two sets of wrenches and sockets, each identifiable for size, with each set calibrated according to a different measuring system and both housed in a common container, and a novel process for identifying said size and said measuring systems by indicia specific to each size and to each system of measurement.

An optical oscillator uses a monochromatic light beam passing through a poelectric crystal subjected to acoustic vibrations which cause the emission of a diffracted light beam. The undiffracted beam is detected by photodetecting means and generates a first voltage signal. The diffracted beam is passed through a unit for delaying the passage of the beam, e.g. a fiber optics loop, and detected by photodetecting means to generate a second voltage signal. The signals are combined and fed to a contro...

Interleaved block-coded modulation with built-in time diversity is used for fading channel applications. Various modulated block codes of various dimensionalities are disclosed, each built up from an M-DPSK constellation. The signal points making up each codeword are re-ordered by an interleaver in a way which matches the interleaving to the block code, thereby increasing the effective size of the interleaver.

A coded anti-theft system of the present invention employs a keyswitch board, a number of relays and timers, and a number of peripherals including a first sensing device, a second sensing device, a starting device, an indicating device, and an alarming device. Aggressive activity is sensed by the sensing devices to sound the alarming device. The system is set with a code by a user, and only the user who enters the correct code can enable the starting device to start the vehicle.

A health-care glove constituted of thin elastic rubber-like material and having a thumb at one side edge and a pinkie at the opposite side edge. The glove has distinctive visual indicia for immediately indicating to the user, the location of the thumb thereby to enable him to initially pick up the glove and easily apply it onto his hand with the thumb and pinkie in the proper relative sense.

A carrier for supporting a coded container in a predetermined orientation on a magnetic conveyor system having magnetic means on the carrier with at least one window in the carrier to expose a coded container held therein.

A color-coded system of training illiterate, mentally handicapped or dyslexic individuals in the performance of certain tasks includes specifying colors designating particular objects and the task or operation to be performed with the object bearing a particular color. Color-coded visual indicators such as flash cards may be used to teach the individual to associate the color with the object and the operation.

A sound-coded system for teaching beginning reading using four sound descriptors which allows one letter or digraph to represent each sound without altering the traditional orthography, or correct American English spelling, of the original words. The sound descriptors correspond to the long vowel sounds, the single-sound digraphs, the silent or misleading letters, and the sounds made with a slight throat utterance. The simplicity and reliability of sound-coding makes decoding of unfamiliar words...

A biphase-mark coded digital audio signal comprising short and long pulses (IEC 958) is decoded despite substantial variation of sample rate but without a separate synchronization or timing signal and without a phase locked loop. The pulse lengths are measured and then compared with two thresholds. One is a variable threshold which is 1.5 times the average length of the short pulses, this average being stored in a register. This will normally be adequate to discriminate the short and long pulses...