A signal waveform synthesizer system is disclosed as containing a digital put decade counter, a four to 10 line decoder and a flip-flop operatively connected to said decade counter. Said decoder has the 10 outputs thereof interconnected and grounded, respectively, and connected to a voltage divider network for producing consecutive output voltages in such manner as to generate a predetermined first half-cycle analog waveform. A direct current blocking capacitor allows the aforesaid flip-flop to ...

A generator for generating a waveform containing only a fundamental frequency and all odd harmonics except the third. The generator includes a transistor connected in a common base configuration. The transistor's emitter current is made to be a function of the states of the three stages of a clocked circulating shift register. The current contribution of the middle stage to the emitter's current is twice that of either the first or the last stage. The register is controlled to circulate through ...

A waveform generator used for electronic musical instruments comprising a resistance device having a plurality of power source electrodes and a plurality of potential detecting electrodes. Electric current is supplied to the power source electrodes and potentials are periodically detected through scanning from the potential detecting electrodes by the use of a scanning circuit mechanism.

A waveform generator is provided for generating a continuous output waveform by a combination of a plurality of emitter-follower type transistor amplifiers which can be set variably and a multi-tapped potentiometer having the respective taps connected to the outputs of said transistor amplifiers. The above combination eliminates stepwise variations in the output waveform and provides an improved continuous waveform. Reduction in the output voltage without changing the waveform and a parallel shi...

A stepwise approximation of a sinewave is generated by inputting different values representing different points on the waveform from a ROM (6) to a step duration counter (5). At the end of each step, a step counter (7) is incremented causing the ROM to input the next value. An up/down counter (3) is also incremented at the end of each step and caused to count in the opposite direction after a preset number of steps. The counter (3) produces an output representing the sinewave where the amplitude...

A waveform generator is provided which is capable of generating simultaneously a plurality of electrical signals which have different waveforms. The waveform generator is completely battery operated and is particularly useful in testing multichannel devices where power is not available for standard waveform generators. A voltage regulation circuit is provided which provides a regulated voltage from a battery pack for use by the waveform generator. The forward voltage-current characteristics of t...

A waveform generator is provided which is capable of generating simultaneously a plurality of electrical signals which have different waveforms. The waveform generator is completely battery operated and is particularly useful in testing multichannel devices where power is not available for standard waveform generators. A voltage regulation circuit is provided which provides a regulated voltage from a battery pack for use by the waveform generator. The forward voltage-current characteristics of t...

A waveform generator is provided which is capable of generating simultaneously a plurality of electrical signals which have different waveforms. The waveform generator is completely battery operated and is particularly useful in testing multichannel devices where power is not available for standard waveform generators. A voltage regulation circuit is provided which provides a regulated voltage from a battery pack for use by the waveform generator. The forward voltage-current characteristics of t...

A method of producing optical and electrical pulses of desired shape. An optical pulse of arbitrary but defined shape illuminates one end of an array of optical fiber waveguides of differing lengths to time differentiate the input pulse. The optical outputs at the other end of the array are combined to form a synthesized pulse of desired shape.

The invention facilitates the calibration of VOR equipment by synthesis of series of waveforms representative of different positions in azimuth. Digital data representative of a frequency modulated component of the VOR waveform is stored in a first memory area (1) and digital data representative of an added sine wave component of the waveform is stored in a second memory area (2). By appropriate cyclic data retrieval from the memory areas and combination of the data (7) together with digital to ...