Signal generating method, signal generating unit, and non-transitory recording medium storing computer program

• US 10,326,831 B2
• Filed: 07/12/2017
• Issued: 06/18/2019
• Est. Priority Date: 02/27/2015
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Inventors: Aoyama, Hideki, Oshima, Mitsuaki
• Primary Examiner(s): Whipple, Brian
• Application Number:
  US15/647,300
• Publication Number:
  US 20170310743A1
• Time in Patent Office: 706 Days
• Field of Search: None
• CPC Class Codes: G01R 27/04 in circuits having distributed constants , e.g. having very long conductors or involving high frequencies
• CPC Class Codes: G06F 16/958 Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
• CPC Class Codes: H04B 10/116 Visible light communication
• CPC Class Codes: H04B 3/14 characterised by the equalising network used
• CPC Class Codes: H04L 27/2602 Signal structure
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1006 with static server selection, e.g. the same server being selected for a specific client

Abstract

One aspect of the present disclosure relates to a signal generating method for generating a visible light signal. A signal generating method includes: a step SD11 of determining, as a method for transmitting a visible light signal from a transmitter, one of a single-frame transmitting method for transmitting data as one frame and a multiple-frame transmitting method for transmitting the data while dividing the data into a plurality of frames; a step SD12 of, when the multiple-frame transmitting method is determined, generating partition type information indicating a type of data to be transmitted, and generating combination data by adding the partition type information to the data to be transmitted; a step SD13 of generating the plurality of frames each of which includes each of a plurality of data parts by dividing the combination data into the plurality of data parts; and a step SD14 of generating the visible light signal by adding a preamble to a head of each of the plurality of frames.

Claims

1. A signal generating method for generating a visible light signal transmitted by way of a luminance change of a light source included in a transmitter, the method comprising:

determining, by a processor and as a method-for transmitting the visible light signal from the transmitter, one of a single-frame transmitting method for transmitting data as one frame and a multiple-frame transmitting method for transmitting the data while dividing the data into a plurality of frames;

when the multiple-frame transmitting method is determined to be the method for transmitting the visible light signal, generating, by the processor, partition type information indicating a type of data to be transmitted, and generating, by the processor, combination data by adding the partition type information to the data to be transmitted;

generating, by the processor, the plurality of frames, each of which includes each of a plurality of data parts, by dividing the combination data into the plurality of data parts;

generating, by the processor, the visible light signal by adding a preamble, being data indicating a head of a frame, to the head of each of the plurality of frames; and

outputting, by the processor, the visible light signal to the transmitter.

2. A signal generating unit that generates a visible light signal to be transmitted by way of a luminance change of a light source included in a transmitter, the signal generating unit comprising:

a processor; and

a memory storing thereon a computer program, which when executed by the processor, causes the processor to perform operations including;

determining, as a method for transmitting the visible light signal from the transmitter, one of a single-frame transmitting method for transmitting data as one frame and a multiple-frame transmitting method for transmitting the data while dividing the data into a plurality of frames;

when the multiple-frame transmitting method is determined to be the method for transmitting visible light signal, generating partition type information indicating a type of data to be transmitted, and generating combination data by adding the partition type information to the data to be transmitted;

generating the plurality of frames, each of which includes each of a plurality of data parts, by dividing the combination data into the plurality of data parts;

generating the visible light signal by adding a preamble that is data indicating a head of a frame to the head of each of the plurality of frames; and

outputting the visible light signal to the transmitter.

3. A non-transitory recording medium having a computer program stored thereon, the computer program causing a processor which is included in a transmitter having a light source which transmits a visible light signal by change in luminace, to execute operations comprising:

determining, as a method for transmitting the visible light signal from the transmitter, one of a single-frame transmitting method for transmitting data as one frame and a multiple-frame transmitting method for transmitting the data while dividing the data into a plurality of frames;

when the multiple-frame transmitting method is determined to be the method for transmitting visible light signal, generating partition type information indicating a type of data to be transmitted, and generating combination data by adding the partition type information to the data to be transmitted;

generating the plurality of frames each of which includes each of a plurality of data parts by dividing the combination data into the plurality of data parts;

generating the visible light signal by adding a preamble, which is data indicating a head of a frame, to the head of each of the plurality of frames; and

outputting the visible light signal to the transmitter.