Apparatus for automatically selectively displaying information of a plurality of kinds

Claim 3

The apparatus as claimed in claim 1, further comprising: means for coupling the output of said second means to said memory means and said comparator means; means for coupling the output of said memory means to said comparator means and to said switch means; and means for coupling the output of said first means to said switch means.

Claim 4

The apparatus as claimed in claim 1, further comprising: a signal generator for generating a first sequence of successive enabling pulses, a second sequence of memory pulses after the respective enabling pulses, and a third sequence of comparison pulses between the respective enabling pulses and the memory pulses produced after the respective enabling pulses; said second means including: terminal means for receiving said second input signal; and gate means responsive to each of said enabling pulses for gating the second input signal received by said terminal means into a gated signal that follows said each enabling pulse and serves as said second information signal; said memory means including a memory responsive to each of said memory pulses for memorizing the gated signal following the enabling pulse after which said each memory pulse is produced, said memory thereby producing a memory output signal as the output of said memory means; said comparator means including; a comparator responsive to each of said comparison pulses for comparing the gated signal following the enabling pulse after which said each comparison pulse is produced with the memory output signal produced in response to the memory pulse produced before the enabling pulse after which said each comparison pulse is produced, said comparator thereby producing said control signal variable between a first and a second state, said control signal having said first state and said second state when the compared signals are coincident and anticoincident with each other, respectively; and said switch means including timer means responsive to said control signal for producing said control signal in said second state for said predetermined period of time, after the comparison pulse in response to which the comparison is carried out, said timer means otherwise putting said control signal in the first state thereof.

Claim 5

The apparatus as claimed in claim 3, further comprising means coupled to said timer means for manually optionally making said timer means put the control signal of the first state of said switch signal in the second state thereof.

Claim 6

The apparatus as claimed in claim 3, further comprising means coupled to said switch means for manually optionally making said switch means supply said display means with said first information signal even while said control signal is put in said second state.

Claim 7

The apparatus as claimed in claim 1, wherein the information of said first kind is time and the information of said second kind is frequency.

Claim 10

A device as claimed in claim 7, wherein the information of said first kind is time given by a clock, the information of said second kind being a frequency to which a radio receiver is tuned.

Claim 11

A device as claimed in claim 7, further comprising: a signal generator for generating a first sequence of successive enabling pulses, a second sequence of memory pulses after the respective enabling pulses, and a third sequence of comparison pulses between the respective enabling pulses and the memory pulses produced after the respective enabling pulses; said second means including; terminal means for receiving said second input signal; and gate means responsive to each of said enabling pulses for gating the second input signal received by said terminal means into a gated signal that follows said each enabling pulse and serves as said second information signal; said memory means including a memory responsive to each of said memory pulses for memorizing the gated signal following the enabling pulse after which said each memory pulse is produced, said memory thereby producing a memory output signal as said memory signal; said comparator means including: a comparator responsive to each of said comparison pulses for comparing the gated signal following the enabling pulse after which said each comparison pulse is produced with the memory output signal produced in response to the memory pulse produced before the enabling pulse after which said each comparison pulse is produced, said comparator thereby producing a result signal variable between a first and a second state, said comparator putting said result signal in the first and the second states when the compared signals are coincident and anti-coincident with each other, respectively; and said third means putting said switch signal in the second state of said switch signal for said predetermined duration a prescribed period after the comparison pulse in response to which the comparison is carried out to result in the result signal of the second state thereof.

Claim 12

A device as claimed in claim 9, further comprising means coupled to said third means for manually optionally making said third means put the switch signal of the first state of said switch signal in the second state thereof.

Claim 13

A device as claimed in claim 9, further comprising means coupled to said switch means for manually optionally making said switch means supply said display means with said first information signal even while said switch signal is put in the second state of said switch signal.

Claim 14

A device as claimed in claim 9, said device being for use in combination with a radio receiver equipped with a clock, said clock producing a first count signal, the information of said first kind being time given by said clock, said radio receiver producing a tuned signal of a frequency corresponding to a tuned frequency to which said radio receiver is tuned, the information of said second kind being said tuned frequency; said first means receiving said first count signal as said first input signal; said terminal means receiving said tuned signal as said second input signal; said gate means including: a gate circuit responsive to each of said enabling pulses for gating the tuned signal received by said terminal means into an information pulse having the frequency of said tuned signal; and means responsive to said information pulse for producing a second count signal following the enabling pulse in response to which said information pulse is produced, said second count signal being representative of said tuned frequency to serve as said second information signal.

Claim 17

The apparatus as claimed in claim 13, wherein the information of said first kind is time and the information of said second kind is frequency.