JP2007049286A - Method of adjusting viewing state, receiver, and transmitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of adjusting a viewing state capable of adjusting the viewing state even if the format of content is converted by a repeating installation installed on a communication path for transmitting the content, and to provide a receiver and a transmitter. <P>SOLUTION: The transmitter 1 has an image information converter 10 for converting image information so that an image for adjustment for indicating information for adjustment for adjusting the viewing state of the content is substituted for one portion of an image indicated by the image information included in the content to be transmitted to the receiver 2. The receiver 2 comprises an image decoder 22 for decoding the image information contained in the content indicated by a transmission signal, an information acquisition section 23 for adjustment for acquiring information for adjustment from the image information decoded by the image decoding section 22, and a sound quality adjustment control section 24 for controlling a voice decoding section 21 for adjusting the sound quality corresponding to the information for adjustment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a viewing state adjustment method, a receiving apparatus, and a transmitting apparatus that adjust a viewing state of transmitted content on a receiving side.

Conventionally, in order to adjust the viewing state of transmitted content on the receiving side, as shown in FIG. 3, a program data detection unit 50 is received by the receiving circuit 51 as in a blanking period portion in television broadcasting. The broadcast content code superimposed on the header portion of the transmitted signal is detected, and the sound quality adjustment control unit 52 converts the broadcast content code detected by the program data detection unit 50 from the sound quality control data set in advance in the memory or the like. There is one that automatically adjusts the viewing state such as sound quality by selecting the sound quality control data based on the selected sound quality control data and setting the selected sound quality control data in the sound processing unit 53 (see, for example, Patent Document 1).
JP-A-6-133238

  However, in the conventional technology as described above, when a broadcast content code is lost due to content format conversion such as compression by a relay device installed on a communication channel for transmitting content, the viewing state can be adjusted. There was a problem that it was impossible.

  The present invention has been made to solve the conventional problems, and a viewing state adjustment method capable of adjusting a viewing state even if the content is converted in format by a relay device installed on a communication path for transmitting the content, An object is to provide a receiving device and a transmitting device.

  The viewing state adjustment method of the present invention is a viewing state adjustment method using a transmission device that transmits content including image information and a reception device that receives and views the content, and the transmission device transmits the content to be transmitted. An image information converting step for converting the image information so as to include an adjustment image representing adjustment information for adjusting the viewing state of the content in an image represented by the included image information; A viewing state adjustment step for adjusting the viewing state corresponding to the adjustment information represented by the adjustment image included in the image represented by the image information included in the image.

  By this method, the image information included in the content represents the header portion that may be lost when the content is converted by the relay device installed on the communication path for transmitting the content without including the adjustment information. Since the adjustment information is included in the image as an adjustment image, the viewing state can be adjusted even if the content is converted in format by a relay device installed on the communication path for transmitting the content.

  In the image information conversion step, the transmission apparatus may convert the image information so that a part of the image represented by the image information is replaced with the adjustment image.

  The adjustment image is preferably an image in which the adjustment information can be reproduced even if the content is subjected to format conversion by a relay apparatus installed on a communication path from the transmission apparatus to the reception apparatus.

  Further, the receiving device of the present invention is a receiving device that receives and views content transmitted by a transmitting device that transmits content including image information, and includes adjustments included in an image represented by image information included in the transmitted content. Adjustment information acquisition means for acquiring adjustment information represented by the image for use, and viewing state adjustment means for adjusting the viewing state of the content corresponding to the adjustment information acquired by the adjustment information acquisition means It has a configuration.

  With this configuration, the receiving device of the present invention does not acquire adjustment information from the header portion that may be lost when the content is converted by the relay device installed on the communication path for transmitting the content. In order to obtain adjustment information from the adjustment image included in the image represented by the image information included in the content, the viewing state is adjusted even if the content is converted in format by the relay device installed on the communication path for transmitting the content. Can do.

  Note that the adjustment information acquisition unit may acquire the adjustment information by identifying the adjustment image from a part of an image represented by image information included in the content.

  The transmitting device of the present invention adjusts the viewing state of the content to an image represented by the image information included in the content to be transmitted in the transmitting device that transmits the content to the receiving device that receives and includes the content including the image information. Image information converting means for converting the image information so as to include an adjustment image representing the adjustment information for the purpose.

  With this configuration, the transmission device of the present invention does not include the adjustment information in the header part that may be lost when the content is converted by the relay device installed on the communication path for transmitting the content. Since the adjustment information is included in the image represented by the image information included in the image as the adjustment image, the receiving device can adjust the viewing state even if the content is converted in format by the relay device installed on the communication path for transmitting the content. it can.

  The image information conversion means may convert the image information so that a part of the image represented by the image information is replaced with the adjustment image.

  Further, the adjustment image is preferably an image in which the adjustment information can be reproduced even if the content is format-converted by a relay device installed on a communication path to the receiving device.

  The present invention can provide a viewing state adjusting method, a receiving device, and a transmitting device that can adjust a viewing state even if the content is converted in format by a relay device installed on a communication path for transmitting the content.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a transmitting apparatus and a receiving apparatus according to an embodiment of the present invention.

  In FIG. 1, the transmission device 1 replaces a part of an image represented by image information included in content transmitted to the reception device 2 with an adjustment image representing adjustment information for adjusting the viewing state of the content. An image information conversion unit 10 for converting the image information, an image encoding unit 11 for encoding the image information converted by the image information conversion unit 10, an audio encoding unit 12 for encoding the audio information included in the content, And a transmission unit 13 that generates a transmission signal representing content including encoded image information and audio information and transmits the transmission signal to the reception device 2.

  Here, the adjustment image is subjected to format conversion such as compression of the content represented by the transmission signal by a relay device (hereinafter simply referred to as “relay device”) installed on the communication path from the transmission device 1 to the reception device 2. However, the adjustment information can be reproduced.

  The image information conversion unit 10 and the image encoding unit 11 are configured by, for example, a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or an image processing processor that executes a program. The image information conversion unit 10 is an image according to the present invention. The information conversion means is configured.

  The audio encoding unit 12 is configured by a CPU, a DSP, or an audio processing processor that executes a program.

  The encoding by the image encoding unit 11 and the audio encoding unit 12 may be performed using a general encoder based on the MPEG (Moving Picture Experts Group) standard or the like.

  The transmission unit 13 includes a CPU that executes a program and a communication module, and may generate a transmission signal based on a general standard such as a 3GPP (3rd Generation Partnership Project) standard.

  The reception device 2 includes a reception unit 20 that receives the transmission signal transmitted from the transmission device 1, an audio decoding unit 21 that decodes audio information included in the content represented by the transmission signal, and an image included in the content represented by the transmission signal. An image decoding unit 22 that decodes information, an adjustment information acquisition unit 23 that acquires adjustment information from the image information decoded by the image decoding unit 22, and an audio decoding unit that adjusts the sound quality corresponding to the adjustment information And a sound quality adjustment control unit 24 for controlling 21.

  The receiving unit 20 includes a CPU that executes a program and a communication module. For example, the receiving unit 20 may receive a transmission signal based on a general standard such as 3GPP standard, and the transmission signal is converted by a relay device. In this case, the transmission signal may be received based on a standard different from the standard based on the transmission unit 13.

  The audio decoding unit 21 and the sound quality adjustment control unit 24 are configured by a CPU, a DSP, or an audio processing processor that executes a program.

  The image decoding unit 22 and the adjustment information acquisition unit 23 are configured by a CPU, a DSP, or an image processor that executes a program.

  Here, the adjustment information acquisition unit 23 constitutes an adjustment information acquisition unit in the present invention, and the audio decoding unit 21 and the sound quality adjustment control unit 24 constitute a viewing state adjustment unit in the present invention.

  Note that the audio decoding unit 21 and the image decoding unit 22 may perform decoding using a general encoder based on the MPEG standard or the like, and when the content represented by the transmission signal is converted by the relay device. The decoding may be performed using an encoder based on a standard different from the standard based on the encoder used by the image encoding unit 11 and the audio encoding unit 12.

  Operations of the transmission apparatus 1 and the reception apparatus 2 configured as described above will be described with reference to FIG.

  In the transmission device 1, as shown in an example in FIG. 2A, a part 31 at a specific position on the image 30 represented by the image information included in the content transmitted to the reception device 2 has the adjustment information. The image information conversion unit 10 converts the image information so as to be replaced with the adjustment image to be represented.

  For example, as the adjustment image, when the content represents video and conversation in a videophone, as shown in FIG. 2B, an image mark 32 representing sound quality adjustment for conversation is used. When representing a streaming video such as music or a movie, an image mark 33 representing sound quality adjustment for high-quality sound is used as shown in FIG. 2C.

  The image mark used as the adjustment image is image data that can be identified by the user who views the content. Even if the content is converted in format, the image mark is the image mark 32 or the image mark 33 by image recognition processing such as pattern matching. Can be identified.

  In the receiving device 2, the image mark 32 or the image mark 33 replaced with the part 31 of the image 30 is identified by the adjustment information acquisition unit 23, and the sound quality adjustment according to the identified image mark is performed by the sound quality adjustment control. This is performed by the audio decoding unit 21 controlled by the unit 24.

  Here, as described above, the adjustment information acquisition unit 23 determines whether the image replaced with the part 31 of the image 30 using the image recognition process such as pattern matching is the image mark 32 or the image mark 33. Identify

  According to the transmission device 1 and the reception device 2 of the embodiment of the present invention, a header that may be lost when the content is converted in format by a relay device installed on a communication path for transmitting the content. Since the adjustment information is included in the image represented by the image information included in the content without including the adjustment information in the portion, the format of the content is converted by the relay device installed on the communication path for transmitting the content. You can also adjust the viewing state.

  In this embodiment, the example of adjusting the sound quality of the audio information based on the adjustment information has been described. However, in the present invention, the image quality, brightness, and the like of the image information are adjusted based on the adjustment information. May be.

  As described above, the viewing state adjusting method, the receiving device, and the transmitting device according to the present invention can adjust the viewing state even if the content is converted in format by the relay device installed on the communication path for transmitting the content. For example, it is useful as a viewing state adjustment method for adjusting the viewing state of transmitted content on the receiving side, a receiving apparatus, and a transmitting apparatus.

The block diagram of the transmitter and receiver in one embodiment of this invention The conceptual diagram for demonstrating the image for adjustment replaced with a part of image which image information represents by the transmitter in one embodiment of this invention Block diagram of conventional receiver

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transmission apparatus 2 Reception apparatus 10 Image information conversion part 11 Image encoding part 12 Audio | voice encoding part 13 Transmission part 20 Reception part 21 Audio | voice decoding part 22 Image decoding part 23 Adjustment information acquisition part 24 Sound quality adjustment control part 50 Program data detection part 51 Reception circuit 52 Sound quality adjustment control unit 53 Audio processing unit

Claims (8)

In a viewing state adjustment method using a transmitting device that transmits content including image information and a receiving device that receives and views the content,
An image information conversion step for converting the image information so that the transmitting device includes an adjustment image representing adjustment information for adjusting a viewing state of the content in an image represented by image information included in the content to be transmitted;
A viewing state adjustment step of adjusting the viewing state corresponding to the adjustment information represented by the adjustment image included in the image represented by the image information included in the transmitted content. Condition adjustment method. 2. The viewing state adjustment according to claim 1, wherein in the image information conversion step, the transmission apparatus converts the image information so that a part of an image represented by the image information is replaced with the adjustment image. Method. The adjustment image is an image in which the adjustment information can be reproduced even if the content is subjected to format conversion by a relay device installed on a communication path from the transmission device to the reception device. The viewing state adjustment method according to claim 1 or 2. In a receiving device for receiving and viewing content transmitted by a transmitting device that transmits content including image information,
Adjustment information acquisition means for acquiring adjustment information represented by the adjustment image included in the image represented by the image information included in the transmitted content;
A receiving apparatus comprising: a viewing state adjustment unit configured to adjust a viewing state of the content corresponding to the adjustment information acquired by the adjustment information acquisition unit. 5. The reception according to claim 4, wherein the adjustment information acquisition unit acquires the adjustment information by identifying the adjustment image from a part of an image represented by image information included in the content. apparatus. In a transmission device that transmits content to a reception device that receives and views content including image information,
Image information conversion means for converting the image information so as to include an adjustment image representing adjustment information for adjusting the viewing state of the content in an image represented by image information included in the content to be transmitted is provided. Transmitting device. The transmission apparatus according to claim 6, wherein the image information conversion unit converts the image information so that a part of an image represented by the image information is replaced with the adjustment image. The adjustment image is an image in which the adjustment information is reproducible even if the content is format-converted by a relay device installed on a communication path to the receiving device. 8. The transmission device according to 7.

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