Unique ring caller ID

• US 6,058,171 A
• Filed: 08/14/1996
• Issued: 05/02/2000
• Est. Priority Date: 08/14/1996
• Status: Expired due to Fees

• Current Assignee: Oakley Telecom LC
• Original Assignee: Oakley Telecom LC
• Inventors: Hoopes, Thomas A.
• Primary Examiner(s): Loomis, Paul
• Assistant Examiner(s): Barnie, Rexford N.
• Application Number:
  US08/689,803
• Time in Patent Office: 1,357 Days
• Field of Search: 379/142, 379/372, 379/373, 379/375, 379/376, 379/179, 379/394, 379/399, 379/164, 379/183, 379/171, 379/182, 379/354, 379/362, 379/377, 379/374
• US Class Current: 379/142.01
• CPC Class Codes: H04M 1/573 Line monitoring circuits for detecting caller identification
• CPC Class Codes: H04M 1/654 Telephone line monitoring circuits therefor, e.g. ring detectors
• CPC Class Codes: H04M 15/06 Recording class or number of calling , i.e. A-party or called party , i.e. B-party
• CPC Class Codes: H04M 19/042 with variable loudness of the ringing tone, e.g. variable envelope or amplitude of ring signal

Abstract

A system and method for suppressing ring signal pulses on a telephone line, the system comprises: (a) determining means for determining a duration and a frequency of the ring signal pulses, and (b) attenuating means, responsive to the duration and the frequency of the ring signal pulses, for attenuating the ring signal pulses. Attenuating the ring pulses includes limiting the voltage difference between TIP and RING lines during the ring pulses to suppress the ring signal or a portion of the ring signal on each telephone connected to the same line.

Claims

1. A system for suppressing ring signal pulses on a telephone line, the ring signal pulses including positive going pulses and negative going pulses, the system comprising:

(a) means for discovering a duration and a frequency of the ring signal pulses the means for discovering including;

(i) timing means for timing widths of the positive going pulses and the negative going pulses to discover a total positive pulse time and a total negative pulse time;

(ii) counting means for counting, selectively, the positive going pulses, the negative going pulses, or both the positive and the negative going pulses to produce a pulse count; and

,

(ii) calculating means for calculating the duration and the frequency from the total positive pulse time, the total negative pulse time, and the pulse count; and

,

(b) attenuating means, responsive to the duration and the frequency of the ring signal pulses, for attenuating the ring signal pulses.

2. The system of claim 1 wherein the timing means includes:

(a) detecting means for detecting at least one of the ring signal pulses;

(b) a timer;

(c) means for starting the timer upon detection of each ring signal pulse; and

,

(d) means for stopping the timer when each ring signal pulse is no longer detected.

3. The system of claim 1 wherein the counting means includes:

(a) detecting means for detecting at least one of the ring signal pulses;

(b) a counter;

(c) means for incrementing the counter upon detection of each ring signal pulse.

4. The system of claim 1 wherein the attenuating means includes limiting means for limiting an amplitude of each ring signal pulse.

5. A device for determining the identity of a telephone caller by modifying a ring signal, the ring signal including ring signal pulses, the ring signal pulses including positive going pulses and negative going pulses, the device comprising:

(a) means for discovering a duration and a frequency of the ring signal pulses, the means for discovering including;

(i) timing means for timing widths of the positive going pulses and the negative going pulses to discover a total positive pulse time and a total negative pulse time;

(ii) counting means for counting, selectively, the positive going pulses, the negative going pulses, or both the positive and the negative going pulses to produce a pulse count; and

,

(iii) calculating means for calculating the duration and the frequency from the total positive pulse time, the total negative pulse time, and the pulse count;

(b) means for decoding a caller ID packet to determine the identity of the caller;

(c) a storage device for storing saved caller information, the saved caller information including caller ring cadence selections and caller identities;

(d) means for selecting a unique ring cadence from the saved caller information and identity of the caller; and

,

(e) attenuating means for attenuating the ring signal pulses in accordance with the unique ring cadence.

6. The system of claim 5 wherein the timing means includes:

(a) detecting means for detecting at least one of the ring signal pulses;

(b) a timer;

(c) means for starting the timer upon detection of each ring signal pulse; and

,

(d) means for stopping the timer when each ring signal pulse is no longer detected.

7. The system of claim 5 wherein the counting means includes:

(a) detecting means for detecting at least one of the ring signal pulses;

(b) a counter;

(c) means for incrementing the counter upon detection of each ring signal pulse.

8. The system of claim 5 wherein the attenuating means includes limiting means for limiting an amplitude of each pulse.

9. A method for suppressing ring signal pulses on a telephone line, the ring signal pulses including positive going pulses and negative going pulses, the method comprising:

(a) discovering a duration and a frequency of the ring signal pulses, the discovering including;

(i) timing widths of the positive going pulses and the negative going pulses to discover a total positive pulse time and a total negative pulse time;

(ii) counting, selectively, the positive going pulses, the negative going pulses, or both the positive and the negative going pulses to produce a pulse count; and

,

(iii) calculating the duration and the frequency from the total positive pulse time, the total negative pulse time, and the pulse count; and

,

(b) attenuating the ring signal pulses, responsive to the duration and the frequency of the ring signal pulses.

10. The method of claim 9 wherein the timing step includes:

(a) detecting at least one of the ring signal pulses;

(b) starting a timer upon detection of each ring signal pulse; and

,

(c) stopping the timer when each ring signal pulse is no longer detected.

11. The method of claim 9 wherein the counting step includes:

(a) detecting at least one of the ring signal pulse; and

,

(b) incrementing a counter upon detection of each ring signal pulse.

12. The method of claim 9 wherein the attenuating step includes limiting an amplitude of each ring signal pulse.

13. A method for identifying a telephone caller by modifying a ring signal, the ring signal including ring signal pulses, the ring signal pulses including positive going pulses and negative going pulses, the method comprising:

(a) discovering a duration and a frequency of the ring signal pulses, the discovering including;

(i) timing widths of the positive going pulses and the negative going pulses to discover a total positive pulse time and a total negative pulse time;

(ii) counting, selectively, the positive going pulses, the negative going pulses, or both the positive and the negative going pulses to produce a pulse count; and

,

(iii) calculating the duration and the frequency from the total positive pulse time, the total negative pulse time, and the pulse count;

(b) decoding a caller ID packet to determine the identity of the caller;

(c) selecting a unique ring cadence from the identity of the caller and saved caller information; and

,

(d) attenuating the ring signal pulses in accordance with the unique ring cadence.

14. The method of claim 13 wherein the timing step includes:

(a) detecting at least one of the ring signal pulses;

(b) starting a timer upon detection of each ring signal pulse; and

,

(c) stopping the timer when each ring signal pulse is no longer detected.

15. The method of claim 13 wherein the counting step includes:

(a) detecting at least one of the ring signal pulse; and

,

(b) incrementing a counter upon detection of each ring signal pulse.

16. The method of claim 13 wherein the attenuating step includes limiting an amplitude of each pulse.