Scanning algorithm for embedded network devices
First Claim
Patent Images
1. A method for filtering signals in a transmission medium having network signals coexisting with broadcast signals, comprising:
- (a) a filter control module controlling a filter coupled to a tuner, the filter switchably attenuating network and broadcast signals above a first frequency or network and broadcast signals above a second frequency greater than the first frequency;
(b) the filter control module receiving an indication that the tuner will tune to a broadcast signal channel between the first frequency and the second frequency; and
(c) the filter control module controlling the filter to switch to attenuating signals above the second frequency in response to receiving the indication;
wherein the transmission medium is coaxial cable;
the first frequency is an upper frequency bound for a first cable television broadcast system and the second frequency is an upper frequency bound for a second cable television broadcast system; and
the frequency range between the first frequency and the second frequency overlaps with at least one MoCA channel.
9 Assignments
0 Petitions
Accused Products
Abstract
A system and method is provided for selective filtering of transmissions based on information received from a tuner. An embedded diplexer in a consumer electronic device allows the device to be used in a variety of different signal environments. For example, a television with an embedded switching filter coupled to the television tuner is operable in environments where television signals are transmitted on frequencies up to 1 GHz and in environments where MoCA signals are transmitted on 1 GHz frequencies.
-
Citations
20 Claims
-
1. A method for filtering signals in a transmission medium having network signals coexisting with broadcast signals, comprising:
-
(a) a filter control module controlling a filter coupled to a tuner, the filter switchably attenuating network and broadcast signals above a first frequency or network and broadcast signals above a second frequency greater than the first frequency; (b) the filter control module receiving an indication that the tuner will tune to a broadcast signal channel between the first frequency and the second frequency; and (c) the filter control module controlling the filter to switch to attenuating signals above the second frequency in response to receiving the indication; wherein the transmission medium is coaxial cable; the first frequency is an upper frequency bound for a first cable television broadcast system and the second frequency is an upper frequency bound for a second cable television broadcast system; and the frequency range between the first frequency and the second frequency overlaps with at least one MoCA channel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A system for filtering signals in a transmission medium having network signals coexisting with broadcast signals, comprising:
-
(a) a filter control module coupled to a tuner; and (b) a filter coupled to and controlled by the filter control module, the filter switchably attenuating network and broadcast signals above a first frequency or signals above a second frequency greater than the first frequency;
wherein,(c) the filter control module is configured to receive an indication that the tuner will tune to a broadcast signal channel between the first frequency and the second frequency; and (d) the filter control module is configured to control the filter to switch to attenuating signals above the second frequency in response to receiving the indication; wherein the transmission medium is coaxial cable; the first frequency is an upper frequency bound for a first cable television broadcast system and the second frequency is an upper frequency bound for a second cable television broadcast system; and the frequency range between the first frequency and the second frequency overlaps with at least one MoCA channel. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A consumer electronic device, comprising:
-
(a) a tuner configured to tune to broadcast signal channels received over a transmission medium; (b) a filter control module coupled to the tuner; and (c) a filter coupled to and controlled by the filter control module, the filter switchably attenuating network and broadcast signals above a first frequency or signals above a second frequency greater than the first frequency;
wherein,(d) the filter control module is configured to receive an indication that the tuner will tune to a broadcast signal channel between the first frequency and the second frequency; and (e) the filter control module is configured to control the filter to switch to attenuating signals above the second frequency in response to receiving the indication; wherein the transmission medium is coaxial cable; the first frequency is an upper frequency bound for a first cable television broadcast system and the second frequency is an upper frequency bound for a second cable television broadcast system; and the frequency range between the first frequency and the second frequency overlaps with at least one MoCA channel. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification