# Patent

## Title
Method to geo-tag streaming music

## Abstract

Songs titles and song artists or other content received on an HD-radio are cross-referenced to one or more geographic locations where they were heard on the radio by identifying a song title or artist in the HD radio data stream and instructing a global positioning system navigation unit to contemporaneously determine its location. The determined location and song title and/or artist are cross-referenced to each other in a list or database. A touch-sensitive display device is configured to display the location or portion of a route where a listened-to song was heard. Song titles and/or artists can be determined by tactile selection of portions of a route displayed on the map.

## Background
RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 13/345,867 filed Jan. 9, 2012, the contents of which are incorporated herein by reference.


FIELD OF THE INVENTION
The present disclosure relates generally to a manner by which to identify information. More particularly, the present disclosure relates to a system, method, and apparatus for geo-tagging streaming data.
BACKGROUND
Hybrid digital radio or “HD Radio” is well known. It permits AM and FM broadcast stations to send program material as a digital data stream and as an analog signal, at the same time. HD radio thus allows radio stations to “multicast” or transmit digital and analog signals, at the same time.
The ability to transmit digital data gives HD radio the ability to provide data services such as vehicle traffic messages, the name of the station to which a listener is tuned to, and, information about content being broadcast from the station. Information about content being broadcast typically include song title and/or the name of an artist.
Internet streaming and satellite radio also have the ability to provide program content that includes music while simultaneously streaming data that can include vehicle traffic messages, the name of the station to which a listener is tuned to, and, information about content being broadcast from the station. Portable communications devices, such as the Blackberry® from Research In Motion, have the ability to wirelessly receive streaming data.
Many drivers who listen to music on an HD car radio while driving and, individuals who listen to music or other content via a wireless communications device, sometimes hear a song or other content that might be liked but they have no idea who the artist is or the name of the particular song. Computer programs exist which try to identify a particular song by sampling the audio and comparing against a database, however, such programs require their purchase and are time consuming to use.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram representation of a system by which streaming music on an HD radio can be geo-tagged;
FIG. 2 is a depiction of a map displayed on a display device and which shows a route traversed by a radio as geo-tagging occurs;
FIG. 3 is a graphical depiction of how different song titles can be received over time;
FIG. 4 is a depiction of a database for storing a list of time entries, cross-referenced or index to a list of coordinates 404, and cross-referenced or indexed to a list of song titles; and
FIG. 5 is a depiction of a method of correlating a song received by a moving radio to one or more geographic locations where the song was received, which is also referred to herein as “geo-tagging.”



DETAILED DESCRIPTION
FIG. 1 is a block diagram representation of a system 100 by which streaming music on an HD radio can be geo-tagged. As used herein, the term “geo-tag” should be construed to mean the identification of a song title and/or its author and/or a performing artist, to a geographic location where the song was received on an HD radio, a geographic location being identified by latitude and longitude coordinates.
Geo-tagging includes the ability to store one or more song titles, authors or performing artist with the geographic location where the song was received on an HD radio, as either separate character strings, separated by commas, spaces or other ASCII characters, or as one continuous string that includes field separators such as commas. Geo-tagging also includes the indexing, retrieval of the song title by location or the location by the song title and the selective display of a route over which an HD radio traveled during which songs were received, the titles recovered and stored and indexed. Geo-tagging also includes the storage, indexing and retrieval of a radio station call sign or call letters assigned to it by governmental agencies such as the U.S. Federal Communications Commission, and its licensed radio frequency.
The system 100 depicted in FIG. 1 comprises an HD radio receiver 102, which receives radio frequency (RF) signals from a conventional antenna 104. The HD radio receiver 102 recovers data from the RF signals using prior art devices and techniques. Audio is output from an audio frequency output port 106 of the radio frequency receiver 102. Audio on the audio frequency output port 106 is provided to a conventional audio power amplifier 108. An output 110 of the amplifier 108 is coupled to one or more conventional speakers 112 from which audio content that was recovered from a received radio frequency signal carrier is available to a user.
In addition to an audio frequency output port 106, the HD radio frequency receiver 102 has a data output port 114 from which a serial data stream is output. The serial data stream output from the data output port 114 comprises data recovered from the HD radio frequency signal. The serial data stream is provided to a received data stream analyzer 116.
The received data stream analyzer 116 analyzes the serial data stream from the radio frequency receiver 102 and identifies information in the serial data stream. Data in the serial data stream sent to the received data stream analyzer 116 most typically includes song titles and an artist performing a song. Data in the serial data stream sent to the received data stream analyzer 116 can also include metadata, which is considered herein as including “album art”, which is in turn considered to be one or more graphic images or symbols published by an artist or a publisher of a song, and which is associated with the song or an album on which the song was released by the artist. The data included in the serial data stream sent to the received data stream analyzer 116 can also include call letters or a call sign of the HD radio station, and/or a broadcast frequency licensed to the radio station owner/operator by a governmental agency, such as the U.S. Federal Communications Commission. Data in the serial data stream sent to the received data stream analyzer 116 can include indicators that identify or signal when a commercial or non-program-content message starts and ends. For brevity, the term “radio station” should be construed as including the call letters/call sign and/or the licensed broadcast frequency of an HD radio signal provider.
The received data stream analyzer 116 can be embodied as a processer that executes stored program instructions examples of which include a microcontroller or a digital signal processer (DSP). The data stream analyzer 116 preferably has at least two outputs embodied as data, or it can output at least two different types of signals from a single output port or terminal. For purposes of illustration, a first output 118 comprises data representing: song titles and/or names of artists and/or metadata related to the song, and/or a radio station, which the received data stream analyzer 116 identified in the data 120 that it receives from the RF receiver 102. Received song titles and/or artists output from the received data stream analyzer 116 are provided to a “received song title list database” 122. Radio station and metadata can be optionally provided to the received song title list database 122 or to one or more other databases.
The received song title list database 122 is preferably stored in a computer-readable memory device, examples of which would include magnetic storage media and semiconductor memory devices such as a flash memory device or other electrically alterable memory devices. The insertion of received song titles and/or received artists, radio station information and/or metadata into the received song title list database 122 can be effectuated by the received data stream analyzer 116 or by another processer or other device not shown and omitted for clarity purposes.
A second output from the received data stream analyzer 116 is a trigger signal 124 to a global positioning system 130 coupled to its own conventional antenna 132. The global positioning system 130 is configured differently than other global positioning systems in that it can be maintained in an idle state until triggered to determine a location of the system 100 responsive to the trigger signal 124 output from the second output of the received data stream analyzer 116. The global positioning system or GPS 130 is thus configured to determine a location of the radio frequency receiver 102 and thus the user where a song is heard, responsive to the detection of a song title and/or artist name in the data 120 received by the radio frequency receiver 102.
After the GPS 130 determines a location of the HD radio receiver 102 responsive to the trigger signal output from the received data stream analyzer 116, the GPS 130 outputs, through an output port or terminal 132, the determined location to a received song location database 134, which is embodied as either a convention random access memory device, a flash memory or a magnetic media. The received song location database 134 can be embodied in the memory device where received song titles are kept. The received song location database 134 is a database or list of locations, determined by the GPS 130, where a song was received by the HD radio receiver 102 and played to a user via the speaker 112. The received song location database 134 stores locations determined by the GPS 130 responsive to trigger signals that the GPS receives from the received data stream analyzer 116. The received song location database 134 is thus a list of latitude and longitude coordinates whereat a particular song was received by the receiver and listened to by the user. The received song location database 134 can also include information pertaining to radio stations from which a song was received (“radio station” data) as well as include metadata associated with songs, cross-referenced to the latitude and longitude coordinates where such information was received.
A received song/location correlator 140 is coupled to both the received song location database 134 and the received song title list database 122. The received song/received song location correlator 140 is configured to cross-reference or index titles of received songs to the various geographic locations that were stored in the received song location database 134 by the GPS 130. The received song/received song location correlator 140 thus makes it possible to locate a song title in the received song location database 134 by a geographic location at which the song was received by the receiver 102, to identify an artist who performed the song, and to display a radio station from which it was received and/or display metadata associated with the song or the album on which the song was released by the artist.
The received song/received song location correlator 140 is preferably embodied as a processor, such as a microcontroller or DSP coupled to its own program instruction storage device 142. Program instructions stored in the storage device 142 imbue the received song/received song location correlator 140 with an ability to display information on an associated display device 150, and to perform the aforementioned cross-referencing.
Referring now to the display device 150, in a preferred embodiment the display device 150 is a conventional touch-sensitive display device. It is capable of both displaying images and detecting on a screen, a touch input, such as a user's finger. Such screens are well-known and commonly used on so called “smart phones.” They are also used at airport ticketing kiosks. When the display device 150 receives a tactile input, it outputs a signal 152 to the correlator 140 corresponding to and identifying a location on the touch-sensitive screen where the tactile input was made.
The correlator 140 is configured to generate images of maps and to effectuate or cause the display of those maps on the display device 150. The correlator 140 is also configured to display on the displayed maps, a route over which the radio receiver 102 travelled over a previous time period.
FIG. 2 is a depiction of a map 200 displayed on a display device 150. The map 200 displays an example of a route 202 that was travelled by the radio between a starting point 204 and an ending point 206. As shown in FIG. 2, the starting point 204 is displayed on the map 200 by highlighting or an icon proximate to the displayed intersection of South State Street and East Monroe Street. Latitude and longitude coordinates displayed near the intersection specify where a first song was received by the system 100, its included HD radio 102, the names of the songs and/or artist being stored contemporaneously into memory.
A first leg 208 of the route 202 extends northward from East Monroe Street to just south of Randolph as shown by the highlighting on either side of South State Street. Reference numeral 212 identifies a point on the first leg 208 where the first song ended, the end of the first song being detected by the receiver 102 by a new data string identifying a second song title and/or artist. The latitude and longitude where the first song ended and a second song begins is identified by corresponding latitude and longitude coordinates identified in the figure as “Lat. 2” and “Long. 2.”
The map 200 shows that the route 202 of the system 100/radio 102 changes direction at the intersection of Randolph Street and State Street and goes eastward to a point just west of Michigan Avenue identified by reference numeral 206. The direction change at the corner of Randolph and State Street is identified as the end of the first leg 208 and has its own latitude and longitudinal coordinates identified as “Lat. 3” and “Long. 3.” A second leg of the route is identified by reference numeral 216. The second leg ends at the “Lat. 4” and “Long. 4” coordinates.
The portion of the route 202 over which the second song was received by the receiver is identified by highlighting adjacent the route from the point 212 where the first song ended. The second highlighting 218 thus identifies a portion of the route 202 over which the second song was received by the receiver.
FIG. 3 is a graphical depiction 300 of how different song titles might be received from an HD radio broadcast over a finite period of time. At a first time denominated as t1 a first song title 302 is received by the radio frequency receiver 102. The first song has a time duration up until t2. FIG. 3 depicts the immediate commencement of a second song with a second title 304 at t2. The second song lasts until t3 whereat a third song starts with a third song title 306. The third song ends at t4.
For illustration purposes, the songs depicted in FIG. 3 having the corresponding song titles 302, 304, 306 can be considered to have a total play time equal the time required for the radio 122 to traverse the route 202 shown in FIG. 2. The first song having the first song title 302 might be considered to start at the origin 204 and last until the radio reaches the second location identified by Lat 2 and Long 2. The second song with the second song title 304 might be considered to have a duration that will last from the Lat 2, Long 2 location up to the end point 206 of the route 202. Thereafter, the radio can be considered or assumed to stay at the destination point 206.
During the time that song titles are received, the radio is traversing the route 202 and changing locations. The changing location of the system 100/radio 102 over time are determined by the GPS system 130 and stored in memory. The system depicted in FIG. 1 is thus configured to receive a signal with information that comprises at least the title of a song and upon the reception of that information or the song title determine a geographic location. The geographic location or a song starts is written into a database along with the time that it started and the title that was received. The system is further configured to repetitively calculate latitude and longitude for as long as the song continues to play.
When a song terminates or changes, the system 100 is configured to determine at least a second geographic location where a second song starts and to record that location and the song title and the time into the same database. The coordinates or locations over which a song is received is thus stored in a memory device and cross-referenced or indexed against the song title. It is therefore possible to retrieve a song title by referencing portions of the route 202 displayed on the map 200.
FIG. 4 is a depiction of a database 400 storing a list of time entries 402, a list of coordinates 404 and a list of song titles 406. The coordinates 404 are those coordinates of locations along which a song having the title in the title list 406 played along a route. The time of reception is also recorded. The correlator 140 accesses a data base such as the database 400 depicted in FIG. 4 and facilitates retrieval of a song title using geographic coordinates. The song is thus tagged geographically or “geo-tagged.”
FIG. 5 is a depiction of a method 500 of geo-tagging or, correlating a song received by a moving radio to one or more locations where the song was received. The method 400 starts at step 504 by the reception of RF signal having a data stream that includes at least a song title and/or artist as described above. As also described above, the radio frequency receiver separates the data stream from content at step 506, the content being the music itself which is either encoded into a digital format or in an analog format but nevertheless played backed for reproduction from the speaker 112. At step 508, the data stream is analyzed to detect the presence of strings of characters that identify the song title and/or artist.
At step 510, a decision is made whether the data 120 received by the received data stream analyzer 116 includes a song title, or if some commercial or non-program-content message is being received. If no song title is present, or if a commercial or non-program-content message is being received, program flow returns to step 508. Stated another way, the incoming data 120 is continuously analyzed to detect the presence of a song title and/or artist. If at step 510 a song title is determined to be present, the program flow proceeds to step 512 where the detected song title is stored in a computer-readable storage medium such as a magnetic disc or semiconductor memory device. As stated above, if it is present in the received data, the name of an artist, associated metadata and radio station data can also be stored. The organization of the computer-readable storage medium vis-à-vis the song titles, and other information, can be arranged substantially as depicted in FIG. 4.
At step 514, the 130 receives the trigger signal 124 from the received data stream analyzer 116 which causes the GPS to determine its current location. At step 516, its current location is stored in a computer-readable storage medium.
A counter of song title is maintained by the method depicted in FIG. 5. Such a counter is necessary of course to enable the selection of a title in order or by its coordinates. At step 518 a counter or pointer into a computer-readable storage medium where the song titles are kept is incremented. Thereafter at step 520 the data 120 from the receiver is rechecked to determine if the same song title is present or if it has changed.
If the received song title has not changed, the program flow continues or returns to step 514 where the GPS system re-determines its location. Step 514, 516, 520 and 522 thus provide a continuous stream of locations that are determined for as long as the song title does not change.
When the song title changes, the program control proceeds to step 524 where the song title counter is incremented. Thereafter the program flow returns to step 508 where the incoming data stream is analyzed as described above.
Those of ordinary skill in the art will recognize that program content that includes music and movies can be “streamed” over the Internet. Such content can also be transmitted wirelessly to cell phones and their equivalents during a conventional cell phone connection to a content provider.
Wireless communications devices such as the Blackberry® from Research In Motion and equivalents thereof, have the ability to wirelessly receive streaming data from the Internet but to also receive program content via a “conventional” cell phone connection or “call.” Such wireless devices include the ability to receive and process data that accompanies a program content Internet “stream” or a program content “broadcast” via a “conventional” cell phone connection.
Any device that is able to wirelessly receive an Internet data stream that carries program content such as music and which data streams include or are accompanied by data related to the content being received, is considered herein as being a “receiver” of such information and functionally equivalent to an HD radio and, for this disclosure, included within the meaning or scope of the term, “HD radio.” Any device that is able to wirelessly receive program content such as music, in either an analog or digital format, and which receives an accompanying data stream that provides data related to the content being received, is also considered herein as being a “receiver” and equivalent to an HD radio and, for purposes of this disclosure, included within the meaning or scope of each of the terms: “receiver,” “radio frequency receiver” and “HD radio.” Stated another way, the terms, “receiver” “radio frequency receiver” and “HD radio” should be construed as including HD-radio receivers and their equivalents, but also including wireless communications devices like the Blackberry® and equivalents thereof.
In view of the foregoing, the term “information” should be broadly construed to include data that identifies a song, such as a song title, the name of an artist or author who performed a song, a radio station and the like, when a song or other content starts and ends, and meta data. And, since such “information” can be conveyed and received via radio frequency signals or the Internet, the terms “signal” and “signals” should be broadly construed to include the delivery or reception of such items by way of either a modulated radio frequency carrier, such as an HD radio signal, a digital data stream carried over a data network such as the Internet, or both.
Those of ordinary skill in the art will recognize that the foregoing description is for purposes of illustration only. The true scope of the invention is set forth in the appurtenant claims.

## Claims

1. A method of correlating information in a data stream received by a mobile receiver to a geographic location where the information in the data stream was received, the method comprising:
receiving, via the mobile receiver, a signal with streaming content and a data stream comprising information about the streaming content;
separating the data stream from the streaming content;
analyzing the data stream to detect whether a particular identifier of the streaming content is present;
responsive to determining that the data stream includes the particular identifier, performing:
sending a trigger signal to a navigation system in an idle state, the trigger signal causing the navigation system to:
leave the idle state,

determine a plurality of geographic locations that corresponds to a route traversed by the mobile receiver while receiving the streaming content, and
store the plurality of geographic locations in a computer-readable storage medium;

correlating stored information regarding the particular identifier in the computer-readable storage medium with the plurality of geographic locations;
responsive to determining that the data stream does not include the particular identifier, continuing analysis of the data stream while the signal is being received; and
displaying a map on a display device, the map including an identification of at least one of the geographic locations, wherein the map including indicators of portions of a route over which the mobile receiver previously travelled, each indicated portion being a portion of the route during which a particular song was received by the mobile receiver.

2. The method of claim 1, wherein receiving the signal comprises:
receiving the data stream as a serial data stream carried on a first portion of a wireless radio frequency signal while simultaneously receiving, on a second portion of the wireless radio frequency signal, the information from which a baseband representation of a song that comprises the streaming content can be reproduced; and
wherein analyzing the data stream comprises detecting in the serial data stream the information comprising the particular identifier for the song.

3. The method of claim 1, wherein the data stream identifies the streaming content as a song and comprises at least one of:
a title of a song,
an artist name,
a radio station identifier, and
a start time and an end time of the song.

4. The method of claim 3, wherein the data stream includes at least one of the title and the artist name.

5. The method of claim 1, further comprising:
locating a particular song in the computer-readable storage medium using at least one geographical location of the plurality of geographic locations.

6. The method of claim 1, further comprising:
displaying a map on a display device, the map including an identification of at least one of the geographic locations.

7. The method of claim 6, wherein the display device comprises a touch-sensitive display device configured to both display images and receive a tactile input and to generate an output signal identifying where the tactile input occurred on the touch-sensitive display device, the map including indicators of portions of a route over which the mobile receiver previously travelled, each indicated portion being a portion of the route during which a particular song was received by the mobile receiver and during which the particular identifier of the particular song was recovered by the mobile receiver.

8. The method of claim 7, further comprising:
receiving, via the touch-sensitive display device, a tactile input that selects a displayed indicator of a particular portion of at least one route; and
in response to receiving the tactile input, displaying, via the touch-sensitive display device, a list of titles of songs that were received by the mobile receiver while the mobile receiver was traversing the at least one route.

9. The method of claim 8, wherein the list of titles are ordered according to a distance along the portion of the at least one route.

10. The method of claim 1, wherein the signal comprises at least one of:
a wireless broadcast radio frequency signal; and
an Internet data stream.

11. The method of claim 1, wherein the navigation system is a global positioning system.

12. A device for correlating information in a signal received by a mobile receiver to a geographic location where the signal was received, the device comprising:
a processor operably coupled with the mobile receiver, the processor configured to perform: receiving from the mobile receiver the signal separated into streaming content and a data stream comprising information about the streaming content;
analyzing the data stream to detect whether a particular identifier of the streaming content is present;
responsive to determining that the data stream includes the particular identifier, performing: sending a trigger signal to a navigation system in an idle state, the trigger signal causing the navigation system to:
leave the idle state,
determine a plurality of geographic locations that corresponds to a route traversed by the mobile receiver while receiving the streaming content,
store the plurality of geographic locations in a computer-readable storage medium;
correlating stored information regarding the particular identifier in the computer-readable storage medium with the plurality of geographic locations;
responsive to determining that the data stream does not include the particular identifier, continuing analysis of the data stream while the signal is being received; and
displaying a map on a display device, the map including an identification of at least one of the geographic locations, wherein the map including indicators of portions of a route over which the mobile receiver previously travelled, each indicated portion being a portion of the route during which a particular song was received by the mobile receiver.

13. The device of claim 12 wherein the data stream identifies the streaming content as a song and the particular identifier comprises at least one of: a song title and an artist name.

14. The device of claim 12 wherein the signal comprises at least one of:
a wireless broadcast radio frequency signal; and
an Internet data stream.

15. The device of claim 12, wherein the processor is operably coupled with a display device and is further configured to display a map on the display device, the map including an identification of at least one of the geographic locations.

16. The device of claim 15, wherein the display device comprises a touch-sensitive display device configured to both display images and receive a tactile input and to generate an output signal identifying where the tactile input occurred on the touch-sensitive display screen, the map including indicators of portions of a route over which the mobile receiver previously travelled, each indicated portion being a portion of the route during which a particular song was received by the mobile receiver and during which the particular identifier of the particular song was recovered by the mobile receiver.

17. The device of claim 16, wherein the processor is further configured to perform:
receiving, via the touch-sensitive display device, a tactile input that selects a displayed indicator of a particular portion of at least one route; and
in response to receiving the tactile input, displaying, via the touch-sensitive display device, a list of titles of songs that were received by the mobile receiver while the mobile receiver was traversing the at least one route.

18. The device of claim 17, wherein the list of titles are ordered according to a distance along the portion of the at least one route.