Apparatus for eliminating picture bounce in television/telephone system
First Claim
1. In a communications system including a television receiver having video display means for producing a video display image in accordance with a received television signal and a telephone interface circuit integrated with said television receiver and cooperable with an external telephone network for processing a dialing signal so as to complete a telephone connection with the corresponding telephone number, the improvement comprising means cooperating with said telephone interface circuit for inhibiting the production of perturbations in said video display image which would otherwise be caused by the processing of said dialing signal for completing said telephone connection.
3 Assignments
0 Petitions
Accused Products
Abstract
A television receiver includes a video display for producing a video display image in accordance with a received television signal and a power supply responsive to an irregular current drain for perturbating the video display image. A telephone interface circuit coupled to the power supply is responsive to a viewer initiated dialing signal for completing a telephone connection with the corresponding telephone number in a manner so as to cause an irregular current drain from the power supply. The resulting perturbations otherwise present in the video display image are eliminated by a circuit cooperating with the telephone interface circuit for effecting a substantially uniform current drain from the power supply in response to the dialing signal.
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Citations
10 Claims
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1. In a communications system including a television receiver having video display means for producing a video display image in accordance with a received television signal and a telephone interface circuit integrated with said television receiver and cooperable with an external telephone network for processing a dialing signal so as to complete a telephone connection with the corresponding telephone number, the improvement comprising means cooperating with said telephone interface circuit for inhibiting the production of perturbations in said video display image which would otherwise be caused by the processing of said dialing signal for completing said telephone connection.
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2. In a communications system including a television receiver having video display means for producing a video display image in accordance with a received television signal, a telephone interface circuit cooperable with an external telephone network for processing a dialing signal so as to complete a telephone connection with the corresponding telephone number and power supply means coupled to both said television receiver and telephone interface circuit, said telephone interface circuit presenting a variable load to said power supply means in response to said dialing signal so as to perturbate the video display image produced by said video display means, the improvement comprising means cooperating with said telephone interface circuit for presenting a substantially uniform load to said power supply means in response to said dialing signal so as to inhibit the perturbation of said video display image.
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3. In a television receiver including video display means for producing a video display image in accordance with a received television signal and power supply means responsive to an irregular load for perturbating the video display image produced by said video display means, the improvement comprising:
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viewer operable means for developing a dialing signal representing a selected telephone number; a telephone interface circuit coupled to said power supply means and responsive to said dialing signal for completing a telephone connection with said selected telephone number through an external telephone network in a manner so as to present an irregular load to said power supply means; and means cooperating with said telephone interface circuit for effecting the presentation thereby of a substantially uniform load to said power supply means in response to said dialing signal.
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4. In a television receiver including video display means for producing a video display image in accordance with a received television signal and power supply means responsive to an irregular current drain for perturbating the video display image produced by said video display means, the improvement comprising:
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viewer operable means for developing a dialing signal representing a selected telephone number; a telephone interface circuit coupled to said power supply means and responsive to said dialing signal for completing a telephone connection with said selected telephone number through an external telephone network in a manner so as to cause an irregular current drain from said power supply means; and means cooperating with said telephone interface circuit for effecting a substantially uniform current drain from said power supply means in response to said dialing signal. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification