Digital broadcast receiving apparatus

• US 7,039,127 B2
• Filed: 07/11/2001
• Issued: 05/02/2006
• Est. Priority Date: 07/11/2000
• Status: Expired due to Fees

• Current Assignee: Pioneer Corporation
• Original Assignee: Pioneer Corporation
• Inventors: Kato, Sei
• Primary Examiner(s): Kim, Kevin
• Application Number:
  US09/901,563
• Publication Number:
  US 20020021768A1
• Time in Patent Office: 1,756 Days
• Field of Search: 375/225, 375/349, 375/324
• US Class Current: 375/316
• CPC Class Codes: H04H 40/18 Arrangements characterised by circuits or components specially adapted for receiving

Abstract

A receivable service is selected from each ensemble of a digital broadcast, and the error rate of the selected service is measured. Only a service belonging to an ensemble containing a service which satisfies a predetermined reference value is searched and preset. A service belonging to an ensemble containing a service with a low error rate is searched and preset, with priority over a service belonging to an ensemble containing a service with a high error rate. The reception level of a receivable service may be used instead of the error rate as the selection reference for processing.

Claims

1. In a receiver for receiving digital broadcasts of a plurality of ensembles each including a plurality of services, a digital broadcast receiving apparatus which performs at least one of a search operation and a preset operation for a receivable service, comprising:

an error rate detecting part for detecting an error rate at its reception of each of said services; and

an error rate comparing part for comparing the detected error rates for services with each other;

wherein at least one of said search operation and said preset operation is performed, based on the comparison result by said error rate comparing part, while a higher priority for the operation being assigned to one or more services belonging to an ensemble containing a service with a lower error rate, than one or more services belonging to an ensemble containing a service with a higher error rate.

2. A digital broadcast receiving apparatus according to claim 1, wherein said error rate detecting part detects an error rate of at least one of said services contained in each ensemble.

3. In a receiver for receiving digital broadcasts of a plurality of ensembles each including a plurality of services, a digital broadcast receiving apparatus which performs at least one of a search operation and a preset operation for a receivable service, comprising:

a reception level detecting part for detecting a reception level at its reception of each of said services; and

a reception level comparing part for comparing the detected reception levels for services with each other;

wherein at least one of said search operation and said preset operation is performed, based on the comparison result by said reception level comparing part, while a higher priority for the operation being assigned to one or more services belonging to an ensemble containing a service with a higher reception level, than one or more services belonging to an ensemble containing a service with a lower reception level.

4. A digital broadcast receiving apparatus according to claim 3, wherein said reception level detecting part detects a reception level of at least one of said services contained in each of said ensembles.