US 2001/0055376 A1 · No caller ID call block

Abstract

A device enables a user to block telephone numbers designated by a caller ID device as “Unavailable”, “Out of Area”, and “Private” numbers. And, specified numbers can be provided in a list and blocked. A user can optionally select actions for the “No Caller ID Call Block” situation. In a first setting the telephone line ring can be suppressed, caller ID data read, and a determination made whether to pass or block the call. In this first case, the block will be performed by the telephone line going off-hook momentarily and back on-hook, such that the call is answered and subsequently disconnected. In a second setting, the block will be performed by the telephone line going off-hook momentarily and back on-hook, such that the call is answered and subsequently disconnected. In a third setting, the telephone line ring will be suppressed, and the block will be performed by suppressing the ring of the telephone for the entire duration of the call attempt. In a fourth setting the telephone line ring can be suppressed, and the block will be performed by answering the telephone call automatically and supplying a message to the caller. Parts List 10—Telco 12—telephone line 14—telephone 20—customer premise equipment 22—input protection circuit 24—demodulator input circuit 28—ring detector 30—automatic power up circuit 32—data line (CID data) 34—RDO line (ring detector output) 36—CDO line (carrier detector output) 40—crystal network 50—micro controller and memory device 60—off-hook circuit 70—ring suppression circuit 80—recorded message circuit 82—display 84—message 92—switch 94—housing 96—telephone jack 110—ring 112—tip

Claims20

Dependent claims

A no caller ID call block apparatus, which comprises:

a) a pair of tip and ring lines, which are connected between the telephone company and the customer premise equipment, and to a calling line ID receiver/ring detector;
b) the calling line ID receiver/ring detector is further connected to an input protection circuit, an off-hook circuit, a ring suppression circuit, and a recorded message circuit;
c) the input protection circuit is in turn connected to a demodulator input circuit and to a ring detector;
d) the demodulator input circuit and the ring detector are each connected to the calling line ID receiver/ring detector;
e) the ring detector is further connected to a crystal network, and to an automatic power-up circuit, and the ring detector produces at least three logic level outputs, the logic level outputs are in turn connected to a micro controller and a memory device;
f) the micro controller and the memory device also receive output from an off hook circuit, a ring suppression circuit and a recorded message circuit, the micro controller and the memory device are in turn connected by a pair of lines to a display device, which at times contains a message;
and
g) the user can selectively block a list of specified numbers;
the user can further selectively block numbers which do not provide a designated telephone number, and the user can elect to selectively pass or block the call after the caller ID is read.

6 more elements

A no caller ID call block apparatus, which comprises:

a) a pair of tip and ring lines, which are connected between the telephone company and the customer premise equipment, and to a calling line ID receiver/ring detector;
b) the calling line ID receiver/ring detector is further connected to an input protection circuit, an off-hook circuit, a ring suppression circuit, and a recorded message circuit;
c) the input protection circuit is in turn connected to a demodulator input circuit and to a ring detector circuit;
d) the demodulator input circuit and the ring detector circuit are each connected to the calling line ID receiver/ring detector;
e) the ring detector is connected to a crystal network, and to an automatic power-up circuit, and the ring detector produces at least three logic level outputs, the logic level outputs connected to a micro controller and a memory device;
f) the micro controller and the memory device also receive output from an off hook circuit, a ring suppression circuit and a recorded message circuit, the micro controller and the memory device are in turn connected by a pair of lines to a display device, which at times contains a message;
g) a manually actuated user select switch is mounted on a housing containing the no caller ID block apparatus circuit, and said switch selectively controls the actuation of the no caller ID block apparatus;
and
the user can selectively block a list of specified numbers;
the user can further block numbers which do not provide a designated telephone number, and the user can elect to either pass or block the call after the caller ID is read.

7 more elements

A no caller ID call block apparatus, which comprises:

a) a pair of tip and ring lines, which are connected between the telephone company and the customer premise equipment, and to a calling line ID receiver/ring detector;
b) the calling line ID receiver/ring detector is further connected to an input protection circuit, an off-hook circuit, a ring suppression circuit, and a recorded message circuit;
c) the input protection circuit is in turn connected to a demodulator input circuit and to a ring detector circuit;
d) the demodulator input circuit and the ring detector circuit are each connected to the calling line ID receiver/ring detector;
e) the ring detector is connected to a crystal network, and to an automatic power-up circuit, and the ring detector produces at least three logic level outputs, the logic level outputs connected to a micro controller and a memory device;
f) the micro controller and the memory device also receive output from an off hook circuit, a ring suppression circuit and a recorded message circuit, the micro controller and the memory device are in turn connected by a pair of lines to a display device, which at times contains a message;
g) a user select switch is controlled by a plurality of software selectable settings;
and said switch selectively controls the actuation of the no caller ID block apparatus;
and
the user can selectively block a list of specified numbers;
the user can further block numbers which do not provide a designated telephone number, and the user can selectively pass or block the call after the caller ID is read.

8 more elements

Dependencies are inferred from the claim text.

No caller ID call block

Life of this patent

No caller ID call block

Life of this patent

Abstract

Claims20