Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1999-05-06
2002-10-22
Maung, Nay (Department: 2681)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S095000
Reexamination Certificate
active
06470197
ABSTRACT:
FIELD OF INVENTION
This invention relates to headsets, particularly headset used to give commands to a microcontroller based device.
BACKGROUND OF THE INVENTION
In the embodiments disclosed in the application, gaining random access to various functions using the momentary (normally-closed) headset switch involves pushing the button in various patterns (click, double-click, hold, etc.). The off-hook detector detects the two states of the push button switch by sensing the DC voltage to ground of the line that is broken by the push button switch.
Since there are two headset interconnect wires (along with a third, common ground return), it is possible to have two such switches: one for each wire. The switches would be independent system inputs, having separate (but identical) off-hook detectors and separate input lines to the microcontroller. The term, switch detector, would then be more appropriate than, off-hook detector. The second button could be dedicated to one function such as, voice command, leaving the other button free for the remaining functions. Rather than two buttons, a single button having three positions could be used with the two-wire scheme wherein one of the three switch positions would be detected by the second switch detector. Using the second wire for push button switch detection has a drawback, however: the wire is no longer free for the headset detect function. It would be desirable to find a solution to this dilemma.
REFERENCES:
patent: 4481671 (1984-11-01), Mätzold
patent: 4484029 (1984-11-01), Kenney
patent: 4591661 (1986-05-01), Benedetto et al.
patent: 4654883 (1987-03-01), Iwata
patent: 4882745 (1989-11-01), Silver
patent: 5001774 (1991-03-01), Lee
patent: 5109543 (1992-04-01), Dissosway
patent: 5191602 (1993-03-01), Regen
patent: 5193221 (1993-03-01), Saginao
patent: 5247705 (1993-09-01), Attig et al.
patent: 5504812 (1996-04-01), Vangarde
patent: 5542103 (1996-07-01), Mottier et al.
patent: 5596638 (1997-01-01), Paterson et al.
patent: 5646979 (1997-07-01), Knuth
patent: 5650776 (1997-07-01), Mitchell
patent: 5694467 (1997-12-01), Young, III
patent: 5745859 (1998-04-01), Takenaka
patent: 5821874 (1998-10-01), Parvulescu
patent: 5826199 (1998-10-01), Maeda
patent: 5867768 (1999-02-01), Onda
patent: 5890074 (1999-03-01), Rydbeck et al.
patent: 5913163 (1999-06-01), Johansson
patent: 5978689 (1999-11-01), Tuoriniemi et al.
patent: 6263216 (2001-07-01), Seydoux et al.
Allison Joseph Michael
Tuoriniemi Veijo Matias
Bruzqa Charles E.
Gelin Jean A.
Maung Nay
LandOfFree
Headset control system for operating a microcontroller based... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Headset control system for operating a microcontroller based..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Headset control system for operating a microcontroller based... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2995702