# US 2017/0288908 A1 · Band translation with protection of in-home networks

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- Number: US 2017/0288908 A1
- Document ID: US20170288908A1
- Status: Published application
- Kind: A1
- Application number: 15/492,162
- Filed: 2017-04-20
- Published: 2017-10-05
- Earliest claimed: 2013-05-05
- Assignees: MaxLinear, Inc.
- Applicants: MaxLinear, Inc.
- Inventors: Glenn Chang; Raja Pullela; Sridhar Ramesh
- Web page: https://patentgrep.com/patent/US20170288908A1

## CPC

- H04N 7/20: Adaptations for transmission via a GHz frequency band, e.g. via satellite
- H04B 1/1027: {assessing signal quality or detecting noise/interference for the received signal}
- H04N 7/106: {for domestic distribution}
- H04N 21/436: Interfacing a local distribution network, e.g. communicating with another STB {or one or more peripheral devices} inside the home
- H04B 1/0075: {using different intermediate frequencied for the different bands}
- H04B 1/1036: {with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters (H04B1/123 takes precedence; filter circuits H03H)}
- H04B 2001/1063: {using a notch filter}
- H04H 40/18: Arrangements characterised by circuits or components specially adapted for receiving
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04B: TRANSMISSION
- H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)

## Abstract

Methods and systems are provided for band translation with protection. A signal processing circuitry (chip) may be configured to receive and process a plurality of input signals, and generate one or more output signals based on the plurality of input signals. The processing may comprise determining when including a component of a first input signal into at least one output signal would have an effect on a component of a second input signal that is also to be included in the output signal, and applying, based on the effect, one or more adjustments to processing of one or both of the first signal and the second signal to mitigate the effect before generating the output signal. In this regard, applying the one or more adjustments may comprise applying one or both of filtering and spectral inversion to one or both of the first signal and the second signal.

## Claims

### Claim at position 1

1-20. (canceled)

### Claim 21

A method, comprising:
processing, via a signal processing chip, a plurality of input signals;
determining, during said processing, when including a component of a first signal from said plurality of input signals into at least one output signal would have an effect on a component of a second signal from said plurality of input signals that is also to be included in said at least one output signal; and
applying, based on said effect, one or more adjustments to processing of one or both of said first signal and said second signal to mitigate said effect before generating output signals based on said plurality of input signals; and
generating one or more output signals based on said plurality of input signals.

### Claim 22 (depends on 21)

The method of claim 21, wherein applying said one or more adjustments comprises applying spectral inversion to one or both of said first signal and said second signal.

### Claim 23 (depends on 21)

The method of claim 21, wherein applying said one or more adjustments comprises applying filtering to one or both of said first signal and said second signal.

### Claim 24 (depends on 21)

The method of claim 21, comprising configuring said one or more adjustments to adjust one or more characteristics of said at least one output signal that are associated with one or both of said component of said first signal and said component of said second signal.

### Claim 25 (depends on 24)

The method of claim 24, wherein adjusting said one or more characteristics comprises modifying one or more frequency bands, within said at least one output signal, assigned to one or both of said component of said first signal and said component of said second signal.

### Claim 26 (depends on 21)

The method of claim 21, comprising determining, when assessing said effect, whether said component of said first signal and said component of said second signal will overlap within a same frequency band in said at least one output signal.

### Claim 27 (depends on 21)

The method of claim 21, wherein one of said first signal and said second signal is associated with internal communications within an in-premises network.

### Claim 28 (depends on 27)

The method of claim 27, wherein said internal communications comprise Multimedia over Coax Alliance (MoCA) based communications, and said one of said first signal and said second signal comprises a MoCA signal.

### Claim 29 (depends on 27)

The method of claim 27, wherein other one of said first signal and said second signal is received from a source external to said in-premises network.

### Claim 30 (depends on 29)

The method of claim 29, wherein said source external to said in-premises network comprises a satellite, and said other one of said first signal and said second signal comprises a satellite signal.

### Claim 31

A system, comprising:
plurality of input circuits, each configured to receive one of a plurality of input signals; and
one or more processing circuits configured to process said plurality of input signals, wherein said one or more processing circuits are operable to:
determine, during said processing of said plurality of input signals, when including a component of a first signal from said plurality of input signals into at least one output signal would have an effect on a component of a second signal from said plurality of input signals that is also to be included in said at least one output signal;
apply, based on said effect, one or more adjustments to processing of one or both of said first signal and said second signal to mitigate said effect before generating output signals based on said plurality of input signals; and
generate one or more output signals based on said plurality of input signals.

### Claim 32 (depends on 31)

The system of claim 31, wherein said one or more circuits are operable to, when applying said one or more adjustments, apply spectral inversion to one or both of said first signal and said second signal.

### Claim 33 (depends on 31)

The system of claim 31, wherein said one or more circuits are operable to, when applying he one or more adjustments, apply filtering to one or both of said first signal and said second signal.

### Claim 34 (depends on 31)

The system of claim 31, wherein said one or more circuits are operable to configure said one or more adjustments to adjust one or more characteristics of said at least one output signal that are associated with one or both of said component of said first signal and said component of said second signal are adjusted.

### Claim 35 (depends on 34)

The system of claim 34, wherein adjustment of said one or more characteristics comprises modifying one or more frequency bands, within said at least one output signal, assigned to one or both of said component of said first signal and said component of said second signal.

### Claim 36 (depends on 31)

The system of claim 31, wherein said one or more circuits are operable to determine, when assessing said effect, whether said component of said first signal and said component of said second signal will overlap within a same frequency band in said at least one output signal.

### Claim 37 (depends on 31)

The system of claim 31, wherein one of said first signal and said second signal is associated with internal communications within an in-premises network.

### Claim 38 (depends on 37)

The system of claim 37, wherein said internal communications comprise Multimedia over Coax Alliance (MoCA) based communications, and said one of said first signal and said second signal comprises a MoCA signal.

### Claim 39 (depends on 37)

The system of claim 37, wherein other one of said first signal and said second signal is received from a source external to said in-premises network.

### Claim 40 (depends on 39)

The system of claim 39, wherein said source external to said in-premises network comprises a satellite, and said other one of said first signal and said second signal comprises a satellite signal.
