Reproduction method and reproduction apparatus

• US 10,708,560 B2
• Filed: 10/14/2019
• Issued: 07/07/2020
• Est. Priority Date: 09/22/2014
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Kozuka, Masayuki, Nishi, Takahiro, Terada, Kengo, Toma, Tadamasa
• Primary Examiner(s): Hunter, Mishawn N.
• Application Number:
  US16/600,764
• Publication Number:
  US 20200045281A1
• Time in Patent Office: 267 Days
• CPC Class Codes: G06T 5/90 Dynamic range modification of images or parts thereof
• CPC Class Codes: G09G 2320/0673 for control of gamma adjustment, e.g. selecting another gamma curve
• CPC Class Codes: G09G 2340/06 Colour space transformation
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: G11B 27/00 Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
• CPC Class Codes: H04N 11/24 High-definition television systems
• CPC Class Codes: H04N 21/234 Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
• CPC Class Codes: H04N 21/431 Generation of visual interfaces for content selection or interaction; Content or additional data rendering
• CPC Class Codes: H04N 21/4318 by altering the content in the rendering process, e.g. blanking, blurring or masking an image region image enhancement or restoration in general G06T5/00
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/43635 HDMI
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/4516 involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
• CPC Class Codes: H04N 21/4518 involving characteristics of one or more peripherals, e.g. peripheral type, software version, amount of memory available or display capabilities
• CPC Class Codes: H04N 5/202 Gamma control circuits for controlling camera response irrespective of the scene brightness H04N23/82
• CPC Class Codes: H04N 9/646 for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters
• CPC Class Codes: H04N 9/87 Regeneration of colour television signals H04N9/80 takes precedence

Abstract

In a reproduction technique, a video stream is any of a hybrid stream quantized based on a hybrid optical-electro transfer function (OETF), a High Dynamic Range (HDR) stream quantized based on a non-hybrid OETF, or a Standard Dynamic Range (SDR) stream quantized based on a non-hybrid OETF. Attribute information is received which indicates whether a display apparatus is configured to display at least one of the HDR stream or the SDR stream. Any one of the hybrid stream, the HDR stream, or the SDR stream is transmitted to the display apparatus, or to a reproduction apparatus to which the display apparatus is connected, based on the attribute information.

Claims

1. A network server apparatus for distributing a video stream to a display apparatus over a network,

the video stream being any of a hybrid stream quantized based on a hybrid optical-electro transfer function (OETF), a High Dynamic Range (HDR) stream quantized based on a non-hybrid OETF, or a Standard Dynamic Range (SDR) stream quantized based on a non-hybrid OETF,

the network server apparatus comprising:

a receiver that receives attribute information which indicates whether the display apparatus is configured to display at least one of the HDR stream or the SDR stream; and

a transmitter that transmits any one of the hybrid stream, the HDR stream, or the SDR stream to the display apparatus based on the attribute information,

wherein the transmitter transmits the hybrid stream and an indication which recommends a user to use a display apparatus which is configured to display the HDR stream when the attribute information received by the receiver indicates that the display apparatus is configured to display the SDR stream.

2. The network server apparatus according to claim 1, wherein

the transmitter transmits the HDR stream when the attribute information received by the receiver indicates that the display apparatus is configured to display the HDR stream.

3. The network server apparatus according to claim 1, wherein the transmitter transmits a stream which is selected by a user from among the HDR stream and the SDR stream when the attribute information received by the receiver indicates that the display apparatus is configured to display the HDR stream.

4. The network server apparatus according to claim 1, wherein the transmitter is configured to transmit the hybrid stream to the display apparatus when the receiver does not receive the attribute information.

5. The network server apparatus according to claim 1, wherein the transmitter transmits the hybrid stream when the attribute information received by the receiver indicates that the display apparatus is configured to display the HDR stream and the SDR stream.

6. A network server apparatus for distributing a video stream to a reproduction apparatus over a network,

the video stream being any of a hybrid stream quantized based on a hybrid optical-electro transfer function (OETF), a High Dynamic Range (HDR) stream quantized based on a non-hybrid OETF, or a Standard Dynamic Range (SDR) stream quantized based on a non-hybrid OETF,

the network server apparatus comprising:

a receiver that receives attribute information which indicates whether a display apparatus, that is connected to the reproduction apparatus, is configured to display at least one of the HDR stream or the SDR stream; and

a transmitter that transmits any one of the hybrid stream, the HDR stream, or the SDR stream to the reproduction apparatus based on the attribute information,

wherein the transmitter transmits the hybrid stream and an indication which recommends a user to use a display apparatus which is configured to display the HDR stream when the attribute information received by the receiver indicates that the display apparatus is configured to display the SDR stream.

7. The network server apparatus according to claim 6, wherein

the receiver receives the attribute information from the reproduction apparatus, and

the attribute information is obtained, by the reproduction apparatus, from the display apparatus via a predetermined communication interface.

8. The network server apparatus according to claim 6, wherein the reproduction apparatus is a set top box or a Blu-ray device.

9. A distribution method for distributing a video stream to a display apparatus over internet,

the video stream being any of a hybrid stream quantized based on a hybrid optical-electro transfer function (OETF), a High Dynamic Range (HDR) stream quantized based on a non-hybrid OETF, or a Standard Dynamic Range (SDR) stream quantized based on a non-hybrid OETF,

the distribution method comprising:

receiving attribute information which indicates whether the display apparatus is configured to display the HDR stream or can display the SDR stream; and

transmitting any one of the hybrid stream, the HDR stream, or the SDR stream to the display apparatus based on the attribute information,

wherein, in the transmitting, the hybrid stream and an indication which recommends a user to use a display apparatus which is configured to display the HDR stream are transmit when the attribute information received in the receiving indicates that the display apparatus is configured to display the SDR stream.

10. A distribution method for distributing a video stream to a reproduction apparatus over internet,

the video stream being any of a hybrid stream quantized based on a hybrid optical-electro transfer function (OETF), a High Dynamic Range (HDR) stream quantized based on a non-hybrid OETF, or a Standard Dynamic Range (SDR) stream quantized based on a non-hybrid OETF,

the distribution method comprising:

receiving attribute information which indicates whether a display apparatus, that is connected to the reproduction apparatus, is configured to display at least one of the HDR stream or the SDR stream; and

transmitting any one of the hybrid stream, the HDR stream, or the SDR stream to the reproduction apparatus based on the attribute information,

wherein, in the transmitting, the hybrid stream and an indication which recommends a user to use a display apparatus which is configured to display the HDR stream are transmit when the attribute information received in the receiving indicates that the display apparatus is configured to display the SDR stream.