Detection for digital radio mondiale plus in hybrid broadcasting mode

Patent metadata

Field	Value
Publication number	US-10790918-B2
Application number	US-201916420417-A
Country	US
Kind code	B2
Filing date	May 23, 2019
Priority date	May 29, 2018
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A radio receiver is disclosed. The radio receiver includes an analog tuner and a baseband processor to provide radio functions. The baseband processor is coupled to the analog tuner. The radio receiver further includes a memory, a controller coupled to the analog tuner, the baseband processor and the memory. The controller is configured to perform an operation, the operation includes causing the analog tuner to analyze a selected FM frequency to determine if the selected FM frequency is associated with a digital radio mondiale (DRM) plus station by first coarsely determine if the selected FM frequency may be associated with a DRM plus station and if coarse determination fails, marking the FM frequency as not being associated with a DRM plus station, wherein if the coarse determination is successful, retrying a selected number of times to continue to determine if the selected FM frequency is associated with a DRM plus station.

First claim

What is claimed is:

1. An analog tuner;
a baseband processor to provide radio functions, wherein the baseband processor is coupled to the analog tuner;
a memory; and
a controller coupled to the analog tuner, the baseband processor and the memory, wherein the controller is configured to perform an operation, the operation includes causing the analog tuner to analyze a selected FM frequency to determine if the selected FM frequency is associated with a digital radio mondiale, DRM, plus station by first coarsely determine if the selected FM frequency may be associated with a DRM plus station and if coarse determination fails, marking the FM frequency as not being associated with a DRM plus station, wherein if the coarse determination is successful, retrying a selected number of times to continue to determine if the selected FM frequency is associated with a DRM plus station.

2. The analog tuner of claim 1 , wherein the coarse determination is performed by determining if the selected FM frequency is not associated with a FM channel.

3. The analog tuner of claim 1 , wherein if the coarse determination results in success, the operation further includes attempting to decode primary control channel.

4. The analog tuner of claim 3 , wherein if the primary control channel decoding is successful, the operation further includes decoding service info and payload data.

5. The analog tuner of claim 4 , wherein the operation further includes playing the decoded payload data on a speaker.

6. The analog tuner of claim 3 , wherein if the primary control channel decoding fails, the operation further includes invoking FM tuning and analyzing tuner metrics to determine that the selected FM frequency may be associated with a DRM plus station.

7. The analog tuner of claim 6 , wherein after analyzing, for a preselected number of times, the selected FM frequency for a DRM plus station using different occurrences of primary control channel each time, if a definite determination that the selected FM frequency is a DRM plus station fails, storing the selected FM frequency as a non DRM plus station in the memory.

Assignees

• Nxp Bv

Inventors

• Jacob Naveen
• Kurian Rajesh

Classifications

• H04H60/25 Primary

  Arrangements for updating broadcast information or broadcast-related information · CPC title

• H04H2201/12

  digital radio mondiale [DRM] · CPC title

• H04H20/57

  for mobile receivers · CPC title

• H04H60/27

  Arrangements for recording or accumulating broadcast information or broadcast-related information · CPC title

• H04H60/41 Primary

  for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas · CPC title