Method and system for generating oscillographic displays of analog signals upon a TV

A system for generating an oscillographic display of at least one period of aperiodic input signal upon a standard television receiver with said input signal being generated external of said receiver and being independent of the television receiver raster frequency comprising:

• a storage medium containing a multiplicity of storage elements;
• means for storing said input signal in said storage elements with each element being responsive to said input signal at a different moment in time;
• means for controlling the rate of storage of said input signal in said storage elements:
• means for triggering the initiation of said storage in synchronism with said input signal;
• means for consecutively reading the signals stored in said storage elements at a rate in synchronism with the horizontal synchronization frequency of said television receiver;
• means for converting the read signals into corresponding video signals compatible with said television receiver;
• and
• means for displaying said video signals.

A television oscilloscope for examining at least one periodic or aperiodic input signal generated from a source external thereof, comprising;

• in combination, within a single housing, a standard TV receiver including color demodulation means and vertical and horizontal deflection means, and means for generating an oscillographic display of said input signals upon said receiver, said generating means comprising:
• a storage medium containing a multiplicity of storage elements;
• means for storing said input signal in said storage elements with each element being responsive to said input signal at a different moment in time;
• means for adjustably controlling the rate of storage of said input signal in said storage elements;
• means for triggering the initiation of said storage in synchronism with said input signal;
• means for consecutively reading the signals stored in said storage elements at a rate in synchronism with the horizontal synchronization frequency of a standard TV receiver;
• means for converting the read signals into TV video signals;
• means for generating pulses at the horizontal synchronization frequency of a standard TV receiver;
• means for generating pulses at the vertical synchronization frequency of a standard TV receiver;
• means for applying said video signals to said color demodulation means;
• and
• means for applying said horizontal and vertical synchronization pulses to said horizontal and vertical deflection means respectively.