# US 2019/0173699 A1 · Modulating communications between platforms onto power delivery rails

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0173699 A1
- Document ID: US20190173699A1
- Status: Published application
- Kind: A1
- Application number: 16/173,806
- Filed: 2018-10-29
- Published: 2019-06-06
- Earliest claimed: 2014-12-11
- Assignees: Intel Corporation
- Applicants: Intel Corporation
- Inventors: Jeremy Burr
- Web page: https://patentgrep.com/patent/US20190173699A1

## CPC

- H04L 27/0002: {analog front ends; means for connecting modulators, demodulators or transceivers to a transmission line (duplex arrangements H04L5/143)}
- H04B 3/542: {the information being in digital form}
- H04B 3/548: {the power on the line being DC (arrangements for feeding power H04L12/10; extracting feeding power from signals H04L25/02)}
- H04L 27/122: {using digital generation of carrier signals (digital function generators G06F1/02, H04L17/10; generating pulses having stepped portions using digital techniques H03K4/026)}
- H04L 27/2003: {for continuous phase modulation (frequency shift keying H04L27/10)}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION

## Abstract

Systems and methods may receive data from a data interface of a base platform, convert the data into an analog signal and modulate the analog signal onto a direct current (DC) power line coupled to a connector of the base platform. Additionally, the modulated analog signal may be received from a DC power line coupled to a connector of a tablet platform, wherein the modulated analog signal is converted to a digital signal and demodulated to recover the data. In one example, the data includes user input data associated with an input device including one or more of a mouse, a keyboard, a keypad or a touchpad.

## Claims

### Claim 1

(canceled)

### Claim 2

A data generation platform comprising:
a data interface;
a power port;
a low pass filter coupled to the power port;
a direct current (DC) power line coupled to the low pass filter;
a connector coupled to the DC power line;
a high pass filter coupled to the DC power line; and
an embedded controller coupled between the data interface and the high pass filter, the embedded controller including:
a converter to receive data from the data interface and convert the data into an analog signal, and
a modulator to modulate the analog signal onto the DC power line via the high pass filter.

### Claim 3 (depends on 2)

The platform of claim 2, wherein the data is to include user input data.

### Claim 4 (depends on 3)

The platform of claim 3, further including an input device, wherein the user input data is to be associated with the input device and the input device includes one or more of a mouse, a keyboard, a keypad or a touchpad.

### Claim 5 (depends on 2)

The platform of claim 2, wherein the data is to include audio data.

### Claim 6 (depends on 2)

The platform of claim 2, wherein the modulator is to use one of frequency-shift keying or phase-shift keying to modulate the analog signal onto the DC power line.

### Claim 7 (depends on 2)

The platform of claim 2, wherein the data interface includes an inter-integrated circuit (I2C) interface.

### Claim 8

A method of processing data, comprising:
receiving data from a data interface of a platform;
converting the data into an analog signal; and
modulating the analog signal onto a direct current (DC) power line coupled to a connector of the platform,
wherein the data is converted to the analog signal by a converter connected between the data interface and a high-pass filter.

### Claim 9 (depends on 8)

The method of claim 8, wherein the data includes user input data.

### Claim 10 (depends on 9)

The method of claim 9, wherein the user input data is associated with an input device including one or more of a mouse, a keyboard, a keypad or a touchpad.

### Claim 11 (depends on 8)

The method of claim 8, wherein the data includes audio data.

### Claim 12 (depends on 8)

The method of claim 8, further including using one of frequency-shift keying or phase-shift keying to modulate the analog signal onto the DC power line.

### Claim 13 (depends on 8)

The method of claim 8, wherein the data is received from an inter-integrated circuit (I2C) interface.

### Claim 14

A method of processing analog signals, comprising:
receiving a modulated analog signal from a direct current (DC) power line coupled to a connector of a platform;
converting the modulated analog signal to a digital signal; and
demodulating the digital signal to obtain data,
wherein the modulated analog signal is converted to the digital signal by a converter connected between a data interface and a bandpass filter.

### Claim 15 (depends on 14)

The method of claim 14, wherein the data includes user input data.

### Claim 16 (depends on 15)

The method of claim 15, wherein the user input data is associated with a peripheral input device including one or more of a mouse, a keyboard, a keypad or a touchpad.

### Claim 17 (depends on 14)

The method of claim 14, wherein the data includes audio data.

### Claim 18 (depends on 14)

The method of claim 14, wherein the modulated analog signal includes one of frequency-shift keying information or phase-shift keying information.

### Claim 19 (depends on 14)

The method of claim 14, further including sending the data to an inter-integrated circuit (I2C) interface.