Method and apparatus for alarm volume control using pulse...

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C340S573700, C340S517000, C340S392300, C600S484000, C600S485000, C600S514000

Reexamination Certificate

active

07079036

ABSTRACT:
There is provided herein a first preferred arrangement of the instant invention, wherein an electronic patient monitor utilizes a computer CPU as an alarm signal generator, which CPU is preferably directly connected to a power amplifier and/or a speaker without an intervening (or subsequent) conventional volume control. The alarm signal is preferably expressed as a series of square waves. The volume of the alarm signal as heard through the speaker is controlled by varying the width of the square waves that represent the alarm signal with the duty cycle of the square waves being shortened to reduce the output alarm volume and lengthened to increase it.

REFERENCES:
patent: 4179692 (1979-12-01), Vance
patent: 4284849 (1981-08-01), Anderson et al.
patent: 4295133 (1981-10-01), Vance
patent: 4484043 (1984-11-01), Musick et al.
patent: 4526477 (1985-07-01), Murakami
patent: 4565910 (1986-01-01), Musick et al.
patent: 4644327 (1987-02-01), Patterson
patent: 4654642 (1987-03-01), Groff
patent: 4700180 (1987-10-01), Vance
patent: 4768022 (1988-08-01), Patterson
patent: D361462 (1995-08-01), Newham
patent: 5554835 (1996-09-01), Newham
patent: 5600108 (1997-02-01), Newham
patent: 5623760 (1997-04-01), Newham
patent: 5633627 (1997-05-01), Newham
patent: 5640145 (1997-06-01), Newham
patent: 5654694 (1997-08-01), Newham
patent: 5730140 (1998-03-01), Fitch
patent: 5807261 (1998-09-01), Benaron et al.
patent: 5945914 (1999-08-01), Holmes et al.
patent: 6065727 (2000-05-01), Fitzgerald et al.
patent: 6111509 (2000-08-01), Holmes
patent: 6292102 (2001-09-01), Smith
patent: 6307476 (2001-10-01), Smith et al.
patent: 6417777 (2002-07-01), Fitzgerald et al.
patent: 6441742 (2002-08-01), Lovely et al.
patent: 6544200 (2003-04-01), Smith et al.
patent: 6646556 (2003-11-01), Smith et al.
patent: 6696653 (2004-02-01), Smith et al.
patent: 6784787 (2004-08-01), Atkins et al.
patent: 6784797 (2004-08-01), Smith et al.
Joshua Israelsohn, “Class D Gen E,”,EDN, Apr. 15, 2004, pp. 49-58.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for alarm volume control using pulse... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for alarm volume control using pulse..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for alarm volume control using pulse... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3548680

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.