Phase optimization for wireless KVM transmission
View Patent ↗In a wireless keyboard-video-mouse (“KVM”) system in which a remote computer accesses the video output data of a target computer, a method of providing video data from the target computer to the remote computer, includes obtaining an analog video signal from a target computer; disabling data compression of the video signal; determining a first phase (P) for analog-to-digital (A/D) conversion of the video signal; beginning compression of the video signal; and adjusting the first phase of the A/D conversion to produced a second phase (P′), based, at least in part, on a number of segments required to transmit the compressed video signal.
1. In a wireless keyboard-video-mouse (“KVM”) system in which a remote computer accesses the video output data of a target computer, a method of providing video data from the target computer to the remote computer, the method comprising:
obtaining an analog video signal from a target computer;
disabling data compression of the video signal;
determining a first phase for analog-to-digital (A/D) conversion of the video signal;
beginning compression of the video signal; and
adjusting the first phase of the A/D conversion to produced a second phase, based, at least in part, on a quality measure of the compressed video signal.
2. A method as in claim 1 wherein the quality measure includes a number of segments required to transmit the compressed video signal.
3. A method as in claim 2 wherein the adjusted phase setting selected is one which produces the lowest segment count of a plurality of tested phases.
4. A method as in claim 1 wherein the first phase is phase P, the method further comprising:
testing phases P−2, P−1, P, P+1, and P+2; and
selecting as the adjusted phase, that phase from the phases P−2, P−1, P, P+1, and P+2 that produces the lowest segment count.
5. In a wireless keyboard-video-mouse (“KVM”) system in which a remote computer accesses the video output data of a target computer, a method of providing video data from the target computer to the remote computer, the method comprising:
(A) obtaining an analog video signal from a target computer;
(B) disabling data compression of the video signal;
(C) determining a first phase (P) for analog-to-digital (A/D) conversion of the video signal;
(D) beginning compression of the video signal; and
(E) adjusting the first phase of the A/D conversion to produced a second phase (P′), based, at least in part, on a number of segments required to transmit the compressed video signal, wherein the adjusted phase setting selected is one which produces the lowest segment count of a plurality of tested phases, the adjusting comprising:
(e1) testing phases P−2, P−1, P, P+1, and P+2; and
(e2) selecting as the adjusted phase, that phase from the phases P−2, P−1, P, P+1, and P+2 that produces the lowest segment count.