Keyboard hold-down functions for a multi-zone intrusion detection system
First Claim
1. A key hold-down apparatus for use in an intrusion detection system of the type employing a keypad consisting of a number of activatable keys for keying in information to said system indicative of a code for arming or disarming said system, the combination therewith comprising:
- timing means coupled to said keys and operative to commence a predetermined timing cycle upon depression of any one of said keys,means coupled to said timing means and responsive to the termination of said timing cycle to provide an indication of the same,logic means coupled to said timing means and responsive to the termination of said timing cycle to provide an output control signal indicative of the key depressed and including means responsive to said control signal to activate said intrusion system to operate in a mode determined by said depressed key.
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0 Petitions
Accused Products
Abstract
An intrusion detection system of the type employing a keypad utilizing the keys to conventionally enable a user to key in a secret code capable of arming or disarming the system. The present apparatus includes a hold-down feature whereby if any one of the plurality of keys on the keypad is depressed for a predetermined interval, the apparatus detects the predetermined timing interval and transmits an audible sound to the user indicating that the requisite timing interval has transpired. Upon receipt of the audible sound, as depending upon the test to be performed, the user is thus informed that the system will now commence the test procedure as defined by the selected key. Thus the system includes apparatus for detecting the requisite timing interval. Upon detection of the requisite timing interval a storage means is activated, which storage means is associated with the selected key. Upon activation of the storage means, the output of the storage means is directed to the intrusion system whereby the intrusion system is now programmed to undergo the test procedure or operating procedure which is defined by the selected key as depressed for the requisite timing interval.
12 Citations
20 Claims
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1. A key hold-down apparatus for use in an intrusion detection system of the type employing a keypad consisting of a number of activatable keys for keying in information to said system indicative of a code for arming or disarming said system, the combination therewith comprising:
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timing means coupled to said keys and operative to commence a predetermined timing cycle upon depression of any one of said keys, means coupled to said timing means and responsive to the termination of said timing cycle to provide an indication of the same, logic means coupled to said timing means and responsive to the termination of said timing cycle to provide an output control signal indicative of the key depressed and including means responsive to said control signal to activate said intrusion system to operate in a mode determined by said depressed key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of providing a hold-down function for an intrusion system of the type employing a keypad having a plurality of activatable digit keys, comprising the steps of:
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timing the activation of one of said keys during a predetermined interval, storing the identity of said depressed key, providing an output indication indicative of the depression of said key during said interval, placing said intrusion detection system in a given operating mode upon receipt of said output indication with said mode determined according to the identity of said activated key as stored. - View Dependent Claims (12)
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13. In an intrusion detection system of the type employing a keypad consisting of a plurality of activable keys used for keying in information to said system indicative of a code for arming or disarming said system, the combination therewith of apparatus for providing a dual use for any one of said keys by operating any one of said keys in a hold-down mode whereby said key is activated for a prolonged period, comprising:
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timing means responsive to the operation of any one of said keys to provide a predetermined timing interval, actuatable storage means associated with each separate key and operative when activated to store an indication of which key was operated, means coupled to said timing means and operative to provide an output indication when said predetermined timing interval has transpired, means responsive to said output indication to actuate said storage means associated with said operated key to cause said storage means to store said indication, IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIcause said storage means to store said indication, means for applying said stored indication to said intrusion detection system to cause said system to operate in a given mode as selected by said key being operated during said predetermined timing interval. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification