Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
64 words
In a television system providing live and recorded television signal transmissions to a receiver station, apparatus for detecting at the receiver station the live and recorded signals, characterized by, detection means at the receiver station for comparing a timing signal transmitted with the live signals with a time signal being produced at the receiving station to indicate the presence of a live signal transmission.
Claim 2
Dependent Claim
64 words
In a television system providing live and recorded television signal transmissions to a receiver station, apparatus for detecting at the receiver station the live and recorded signals, characterized by, detection means at the receiver station for comparing a timing signal transmitted with the live signals with a time signal being produced at the receiving station to indicate the presence of a live signal transmission.
Claim 3
Dependent Claim
36 words
The television system of Claim 1 further characterized by means at a television transmitting station for accurately controlling a time signal and transmitting it simultaneously with live television signals to distinguish them from recorded television signals.
Claim 4
Dependent Claim
46 words
The television system of Claim 1 further characterized by television query signals transmitted with the live signals, including means at the receiver station responsive to the detection means for producing an answer back signal in response to the query signals only for the live signal transmissions.
Claim 5
Dependent Claim
57 words
The television system of Claim 1 further characterized by automatic time adjustment means at the receiver station comprising a battery backed clock circuit providing said time signal, and means comparing the received time signal with the clock circuit time signal, and means to update the time on the clock circuit in response to the received time signal.
Claim 6
Dependent Claim
65 words
The television system of Claim 1 further characterized by a wireless transmission from a transmitter having an oscillator frequency controlled to a predetermined frequency of a pluraltiy of megahertz within a predetermined accuracy, timing signal transmissions synchronized with the oscillator signals, means at the receiver for receiving and processing the synchronized timing signals to derive therefrom the time signal being produced at the receiver station.
Claim 7
Dependent Claim
61 words
The television system of Claim 5 further characterized by means at the receiver for accurately gating the synchronized timing signal transmissions over a predetermined timing period, means for counting the gated timing signals, oscillator means at the receiver station, and means for automatically controlling the frequency of the oscillator means at the receiver station by means of the gated timing signals.
Claim 8
Dependent Claim
72 words
The television system of Claim 6 further characterized by television query signals transmitted with the live signal transmissions, means synchronized with the oscillator means at a plurality of receiver stations for sending answer back signals from the receiver stations on the same transmission frequency, and means for timing the signals at precise different times from the different receiver stations controlled by the frequency of the oscillator means at the respective receiver stations.
Claim 9
Dependent Claim
46 words
The television system of Claim 1 further characterized by answer back means at the receiver station providing answer back signals responsive to transmitted queries on the live signal transmissions, and synchronization means timing the answer back signals from the timing signals transmitted with the live signals.