BROADCAST CONTENT TRANSMITTING APPARATUS AND BROADCAST CONTENT RECEIVING APPARATUS
First Claim
1. A broadcast content transmitting apparatus comprising:
- a program information generating section that, with respect to broadcast content that is comprised of a plurality of objects, generates program information, including a list of objects constituting the broadcast content, object identifiers, object version number information and object transmission times;
a content delivery control section that repeats transmitting the objects based on the object broadcast times, and also transmits the program information at a predetermined transmission time; and
an updating section that, when there is addition, removal or updating with respect to the objects constituting the broadcast content, updates the program information of the broadcast content, wherein;
the updating of the objects is reported to a broadcast content receiving apparatus by updating corresponding object version number information; and
the addition or removal of the objects is reported to the broadcast content receiving apparatus by updating the object list.
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Accused Products
Abstract
When only part of content that is stored inside a terminal is updated, the updated content is allowed to be received efficiently, taking into account reducing the power consumption of the terminal. This broadcast content delivery apparatus (10) has a program information generating apparatus (15) that generates program information including a list of objects constituting the broadcast content, object identifiers, object version number information, and object broadcast times, and a content delivery control apparatus (12) that repeats transmitting the objects based on the object broadcast times, and transmits the program information at a predetermined transmission time, when there is addition, removal or updating with respect to the objects constituting the broadcast content, the program information of the broadcast content is updated, the updating of the objects is reported to a broadcast content receiving apparatus by updating corresponding object version number information, and the addition or removal of the objects is reported to the broadcast content receiving apparatus by updating the object list.
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Citations
11 Claims
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1. A broadcast content transmitting apparatus comprising:
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a program information generating section that, with respect to broadcast content that is comprised of a plurality of objects, generates program information, including a list of objects constituting the broadcast content, object identifiers, object version number information and object transmission times; a content delivery control section that repeats transmitting the objects based on the object broadcast times, and also transmits the program information at a predetermined transmission time; and an updating section that, when there is addition, removal or updating with respect to the objects constituting the broadcast content, updates the program information of the broadcast content, wherein; the updating of the objects is reported to a broadcast content receiving apparatus by updating corresponding object version number information; and the addition or removal of the objects is reported to the broadcast content receiving apparatus by updating the object list. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A broadcast content receiving apparatus comprising:
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a receiving section that receives program information including an object list of objects constituting broadcast content, object identifiers, object version number information and object broadcast times, and also receives the objects included in the object list of the program information based on the object broadcast times; a memory that stores the broadcast content received in the receiving section in object units, and program information related to the broadcast content; and a control section that detects updating of the objects from the object version number information included in newest program information that is stored in the memory, detects addition or removal of the objects from the object list, and controls the receiving section to receive only an object that is detected to be updated or added, among a plurality of objects constituting the broadcast content, at an object broadcast time of the object. - View Dependent Claims (8, 9)
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10. A broadcast content transmitting method comprising the steps of:
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with respect to broadcast content that is comprised of a plurality of objects, generating program information, including a list of objects constituting the broadcast content, object identifiers, object version number information and object transmission times; repeating transmitting the objects based on the object broadcast times, and also transmitting the program information at a predetermined transmission time; and when there is addition, removal or updating with respect to the objects constituting the broadcast content, updating the program information of the broadcast content, wherein; the updating of the objects is reported to a broadcast content receiving apparatus by updating corresponding object version number information; and the addition or removal of the objects is reported to the broadcast content receiving apparatus by updating the object list.
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11. A broadcast content receiving method comprising:
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receiving program information including an object list of objects constituting broadcast content, object identifiers, object version number information and object broadcast times, and also receiving the objects included in the object list of the program information based on the object broadcast times; storing the broadcast content received in object units, and program information related to the broadcast content; and detecting updating of the objects from the object version number information included in newest program information that is stored, detecting addition or removal of the objects from the object list, and controlling a reception start time such that only an object that is detected to be updated or added is received, among a plurality of objects constituting the broadcast content, at an object broadcast time of the object.
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Specification