Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
241 words
A combined UHF and VHF television channel selector comprising: tuning means including a plurality of varactors as the frequency determining elements, the frequency determined being a function of the voltage presented to a respectively terminal of each such varactor; a rotary switch having a predetermined number of fixed contacts respectively associated with different channels in the VHF and UHf television spectra and at least one selection contact movable over respective different ones of said fixed contacts; a voltage divider composed of a plurality of resistors series connected in succession with individually progressive different junctions between said resistors connected to respective differEnt ones of said fixed contacts; means for impressing a D-C potential across said voltage divider; fast-tuning means including a first rotatable shaft coupled to said selection contact for driving the same from each one of said fixed contacts to the next; means for detenting said first shaft each time upon movement of said selection contact successively between a chosen number of said fixed contacts, said number being greater than two slow-tuning means including a second shaft; a gear system mechanically coupling said second shaft to said first shaft; means for detenting said second shaft in rotational increments corresponding to movement of said selection contact, through said gear system and said first shaft, from each one of said fixed contacts to the next; and means for selectively coupling said selection contact to each of said varactors for establishing a tuning frequency.
Claim 2
Dependent Claim
241 words
A combined UHF and VHF television channel selector comprising: tuning means including a plurality of varactors as the frequency determining elements, the frequency determined being a function of the voltage presented to a respectively terminal of each such varactor; a rotary switch having a predetermined number of fixed contacts respectively associated with different channels in the VHF and UHf television spectra and at least one selection contact movable over respective different ones of said fixed contacts; a voltage divider composed of a plurality of resistors series connected in succession with individually progressive different junctions between said resistors connected to respective differEnt ones of said fixed contacts; means for impressing a D-C potential across said voltage divider; fast-tuning means including a first rotatable shaft coupled to said selection contact for driving the same from each one of said fixed contacts to the next; means for detenting said first shaft each time upon movement of said selection contact successively between a chosen number of said fixed contacts, said number being greater than two slow-tuning means including a second shaft; a gear system mechanically coupling said second shaft to said first shaft; means for detenting said second shaft in rotational increments corresponding to movement of said selection contact, through said gear system and said first shaft, from each one of said fixed contacts to the next; and means for selectively coupling said selection contact to each of said varactors for establishing a tuning frequency.
Claim 3
Dependent Claim
41 words
A selector as defined in claim 1, which includes an indicator wheel affixed to said first shaft and having a plurality of channel indicating numbers, corresponding to selection of respective different ones of said fixed contacts, successively spaced around its periphery.
Claim 4
Dependent Claim
22 words
A selector as defined in claim 2, in which said first and second shafts are spaced apart and parallel to one another.
Claim 5
Dependent Claim
16 words
A selector as defined in claim 2, in which said first and second shafts are coaxial,
Claim 6
Dependent Claim
56 words
A selector as defined in claim 2, in which said gear system couples said second shaft to said first shaft through said means for detenting said first shaft and in which, upon operation of said fast tuning means, said means for detenting said first shaft yields without yielding of said means for detenting said second shaft.
Claim 7
Dependent Claim
33 words
A selector as defined in claim 5, in which, upon operation of said slow-tuning means, said means for detenting said second shaft yields without yielding of said means for detenting said first shaft.
Claim 8
Dependent Claim
44 words
A selector as defined in claim 2, in which said VHF spectra has twelve channels and in which said means for detenting said second shaft has a number of detents for one complete rotation of said second shaft which is integrally divisible into 12.