Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
An apparatus for generating an audio test signal of variable amplitude and displaying digitally a numerical value representative of the relative amplitude of said signal comprising: a. signal generating means for generating a audio test signal; b. digital counter means independent of said signal generating means for selectively producing sequentially decrementing and incrementing digital signals independent of said audio test signal; c. digital attenuator means connected to said signal generating means and responsive to said digital signals produced by said digital counter means for sequentially decrementing and incrementing the amplitude of said audio test signal; and d. digital display means responsive to said digital signals produced by said digital counter means for automatically displaying digital numerical values corresponding to said digital signals, said numerical values being representative of the relative amplitude of said audio test signal.
Claim 2
Independent Claim
136 words
An apparatus for generating an audio test signal of variable amplitude and displaying digitally a numerical value representative of the relative amplitude of said signal comprising: a. signal generating means for generating a audio test signal; b. digital counter means independent of said signal generating means for selectively producing sequentially decrementing and incrementing digital signals independent of said audio test signal; c. digital attenuator means connected to said signal generating means and responsive to said digital signals produced by said digital counter means for sequentially decrementing and incrementing the amplitude of said audio test signal; and d. digital display means responsive to said digital signals produced by said digital counter means for automatically displaying digital numerical values corresponding to said digital signals, said numerical values being representative of the relative amplitude of said audio test signal.
Claim 3
Dependent Claim
65 words
The apparatus of claim 1 wherein said digital attenuator means includes a plurality of attenuator segments and associated switch pairs operatively connected in cascade, each said segment being selectively switchable into and out of said operative connection by the simultaneous operation of a respective one of said switch pairs such that one of the switches in said pair is open when the other is closed.
Claim 4
Independent Claim
117 words
An apparatus for generating an audio test signal of varying amplitude and displaying a numerical value variably responsive to said amplitude comprising: a. signal generating means for generating an audio test signal of varying amplitude b. two-position switch means coupled with said signal generating means for gradually decrementing the amplitude of said test signal in one position and gradually incrementing the amplitude of said test signal in the other position; and c. display means coupled with said signal generating means for displaying automatically in response to the movement of said switch means, a numerical indication of the relative amplitude of said test signal at a point when said switch means moves from one position to the other.
Claim 5
Independent Claim
117 words
An apparatus for generating an audio test signal of varying amplitude and displaying a numerical value variably responsive to said amplitude comprising: a. signal generating means for generating an audio test signal of varying amplitude b. two-position switch means coupled with said signal generating means for gradually decrementing the amplitude of said test signal in one position and gradually incrementing the amplitude of said test signal in the other position; and c. display means coupled with said signal generating means for displaying automatically in response to the movement of said switch means, a numerical indication of the relative amplitude of said test signal at a point when said switch means moves from one position to the other.
Claim 6
Dependent Claim
52 words
The apparatus of claim 3 wherein said switch means includes means independent of said generating means for producing a digital signal representative of the relative amplitude of said test signal, and wherein said display means includes digital means for converting said digital signal to a digital numerical indication of said relative amplitude.
Claim 7
Dependent Claim
27 words
The apparatus of claim 3, further including means responsive to said switch mean for generating an audio alarm signal concurrently with said display of said numerical indication.
Claim 8
Dependent Claim
32 words
The apparatus of claim 3 wherein said display means includes means for maintaining the display of said numerical indication until said swtich again moves from said one positon to said other position.