Scovill Inc.

Other

Waller M Scott, Jr

Samuel Goldblatt

A musical door chime which includes a repertoire of musical tunes one of which is played when a door pushbutton, preferably the front door pushbutton, is actuated. The musical tune which is played may be selected by means of a keyboard connected to a microprocessor. Digitally encoded representations of the notes of each musical tune are stored in a memory.

Musical door chime preferably also combined with a clock for

A musical door chime which includes a repertoire of musical tunes one of which is played when a door pushbutton, preferably the front door pushbutton, is actuated. The musical tune which is played may be selected by means of a keyboard connected to a microprocessor. Digitally encoded representations of the notes of each musical tune are stored in a memory. Each digitally encoded musical note is read from memory by the microprocessor and converted by the microprocessor into a squarewave having the frequency and the duration of the note. The microprocessor is connected to a note strike and decay circuit which is preferably connected in series with an active audio filter circuit for translating the squarewave into a sinusoidal output for energizing a loudspeaker so that relatively high quality audible tones are heard when the musical tune is played. Preferably, a two-note musical tune is played when a rear door pushbutton is actuated, and a fixed single musical note is played when a side door pushbutton is actuated.

A system is disclosed for controlling a motor which drives an operating mechanism for moving a door, such as an overhead garage door, in either direction between a closed position and an open position in response to actuation of a start switch. The control system includes an encoder including a rotatable disc driven by the motor and control circuitry including an encoder pulse verification circuit associated with the encoder for detecting the direction of door movement as well as increments of travel by the door when the door is moved by the motor under control of a motor command circuit in response to actuation of the start switch. The start switch and a start circuit cooperate with the motor command circuit for energizing the motor to move the door in one direction, for de-energizing the motor to stop the door at any position, and for re-energizing the motor to reverse the door in response to repeated actuation of the start switch. An up/down counter circuit is responsive to the direction as well as the increments of travel by the door for containing a count representative of the actual position of the door. A programming circuit is included for setting an up limit setpoint which is stored in a latch circuit. A decoder circuit cooperates with the motor command circuit, the up/down counter circuit, the latch circuit, and a comparator circuit for de-energizing the motor when the door reaches the up limit setpoint as the door is opened. The decoder circuit cooperates with the motor command circuit and the up/down counter circuit for de-energizing the motor when the door reaches the threshold as the door is closed. An obstruction detector circuit is responsive to rate of movement of the door for sensing an obstruction. The obstruction detector circuit cooperates with the motor command circuit for de-energizing the motor if an obstruction is sensed as the door is opened and cooperates with the motor command circuit, the up/down counter circuit, and the decoder circuit for reversing the motor if an obstruction is sensed as the door is closed unless the door is a predetermined distance or less above the threshold whereupon reversal of the motor is inhibited and the motor is merely de-energized. A reset circuit is included for resetting the control circuitry so that the initial actuation of the start switch will cause the door to be opened. Other features are also disclosed.

Control system for a motor actuated door operating mechanism

A musical door chime which includes a repertoire of musical tunes one of which is played when a door pushbutton, preferably the front door pushbutton, is actuated. The musical tune which is played may be selected by means of a keyboard connected to a microprocessor. Digitally encoded representations of the notes of each musical tune are stored in a memory. Each digitally encoded musical note is read from memory by the microprocessor and converted by the microprocessor into a squarewave having the frequency and the duration of the note. The microprocessor is connected to a note strike and decay circuit which is preferably connected in series with an active audio filter circuit for translating the squarewave into a sinusoidal output for energizing a loudspeaker so that relatively high quality audible tones are heard when the musical tune is played. Preferably, a two-note musical tune is played when a rear door pushbutton is actuated, and a fixed single musical note is played when a side door pushbutton is actuated. The musical door chime is preferably also combined with a visual display driven by the microprocessor for indicating the time of day. The time is preferably annunciated every quarter hour by means of musical notes. A multi-frequency tone is played for the hour strike. The keyboard serves various other control functions in addition to selecting the musical tune to be played.

A device for measuring the sensitivity of a patient to externally applied vibration. The device includes a pallometer head which supports a vibratable probe. The probe is caused to vibrate with a selected amplitude and at a selected frequency. The head is supported beneath a table with the probe extending through an opening in the table so that the probe can be engaged by a member of the patient as the member rests on the table. The head is supported on a beam which carries a counterweight so that the probe engages a member of the patient with a controlled pressure.

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West Chester, OH, United States of America

Waller M Scott, Jr