Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
A starting device for a discharge tube, comprising rectifying means connected to an AC power source and adapted to transform an AC voltage of said AC power source into a stable DC voltage, pulse generating means driven by the DC voltage issued from said rectifying means and adapted to issue high-frequency pulses of a fixed duty ratio, adjusting means for altering the frequency of the pulses issued from said pulse generating means, high-voltage applying means for applying high voltage to said discharge tube, and switching means for driving said high-voltage applying means synchronously with the high-frequency pulses issued from said pulse generating means.
Claim 2
Dependent Claim
103 words
A starting device for a discharge tube, comprising rectifying means connected to an AC power source and adapted to transform an AC voltage of said AC power source into a stable DC voltage, pulse generating means driven by the DC voltage issued from said rectifying means and adapted to issue high-frequency pulses of a fixed duty ratio, adjusting means for altering the frequency of the pulses issued from said pulse generating means, high-voltage applying means for applying high voltage to said discharge tube, and switching means for driving said high-voltage applying means synchronously with the high-frequency pulses issued from said pulse generating means.
Claim 3
Dependent Claim
44 words
A starting device according to claim 1, wherein said adjusting means is composed of a variable resistor and a capacitor and, consequently, the frequency of pulses issued from said pulse generating means is adjusted by varying the magnitude of resistance of said variable resistor.
Claim 4
Dependent Claim
24 words
A starting device according to claim 1, wherein said pulse generating means is adapted to issue high-frequency pulses having a duty ratio of 50%.
Claim 5
Dependent Claim
103 words
A starting device for a discharge tube, comprising rectifying means connected to an AC power source and adapted to transform an AC voltage of said AC power source into a stable DC voltage, sequential potential forming means for sequentially producing at a plurality of output terminals stated potentials with time constants different from one another, in accordance with the DC voltage issued from said rectifying means, and a plurality of high-voltage applying means connected severally to said output terminals and adapted to apply high voltages severally to a plurality of discharge tubes when the potentials of said output terminals equal said stated potentials.
Claim 6
Dependent Claim
103 words
A starting device for a discharge tube, comprising rectifying means connected to an AC power source and adapted to transform an AC voltage of said AC power source into a stable DC voltage, sequential potential forming means for sequentially producing at a plurality of output terminals stated potentials with time constants different from one another, in accordance with the DC voltage issued from said rectifying means, and a plurality of high-voltage applying means connected severally to said output terminals and adapted to apply high voltages severally to a plurality of discharge tubes when the potentials of said output terminals equal said stated potentials.
Claim 7
Dependent Claim
89 words
A starting device according to claim 4, wherein said high-voltage applying means is composed of a pulse generating circuit driven by the DC voltage issued from said rectifying means and adapted to issue high-frequency pulses of a fixed duty ratio, an adjusting circuit for altering the frequency of pulses issued from said pulse generating circuit, a high-voltage applying circuit for applying a high voltage to a discharge tube, and a switching circuit for driving said high-voltage applying circuit synchronously with the high-frequency pulses issued from said pulse generating circuit.
Claim 8
Dependent Claim
44 words
A starting device according to claim 5, wherein said adjusting circuit is composed of a variable resistor and a capacitor and, consequently, the frequency of pulses issued from said pulse generating means is adjusted by altering the magnitude of resistance of said variable resistor.
Claim 9
Dependent Claim
24 words
A starting device according to claim 5, wherein said pulse generating circuit is adapted to issue high-frequency pulses of a duty ratio of 50%.
Claim 10
Dependent Claim
43 words
A starting device according to claim 4, wherein said sequential potential forming means is composed of a plurality of resistors possessing magnitudes of resistance different from one another and a plurality of capacitors of one fixed capacity connected one each to said resistors.
Claim 11
Dependent Claim
44 words
A starting device according to claim 4, wherein said sequential forming means is composed of a plurality of capacitors possessing capacities different from one another and a plurality of resistors of one and the same magnitude of resistance connected one each to said capacitors.