Abstract: An example apparatus includes a record updater to initialize a variable to be equal to a first time of a first record classified as AOT data or to be equal to a last time of a last record classified as AOT data, an operating state identifier to access a first channel of the first record and last channel of the last record, a comparator to compare the first channel with a second channel or a third channel with the last channel, the second channel corresponds to a previously classified record of the first record and the third channel corresponds to a previously classified record of the last record, and a duplicator to, in response to the first channel matching the second channel, or the last channel matching the third channel, create a replica of the second channel or the third channel to store in place of the AOT data.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. Example apparatus to identify media include at least one memory, instructions, and at least one processor to execute the instructions to: determine a first ratio based on a first time interval and a second time interval of a monitored media signal; determine a second ratio based on the second time interval and a third time interval of the monitored media signal; generate a first ratio signature based on the first and second ratios; and initiate transmission of the first ratio signature to a recipient that is to compare the first signature with a second ratio signature to identify the media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. Example apparatus to identify media include at least one memory, instructions, and at least one processor to execute the instructions to: determine a first ratio based on a first time interval and a second time interval of a monitored media signal; determine a second ratio based on the second time interval and a third time interval of the monitored media signal; generate a first ratio signature based on the first and second ratios; and initiate transmission of the first ratio signature to a recipient that is to compare the first signature with a second ratio signature to identify the media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. Example apparatus to identify media include at least one memory, instructions, and at least one processor to execute the instructions to: determine a first ratio based on a first time interval and a second time interval of a monitored media signal; determine a second ratio based on the second time interval and a third time interval of the monitored media signal; generate a first ratio signature based on the first and second ratios; and initiate transmission of the first ratio signature to a recipient that is to compare the first signature with a second ratio signature to identify the media.

Abstract: An example apparatus includes a record updater to initialize a variable to be equal to a first time of a first record classified as AOT data or to be equal to a last time of a last record classified as AOT data, an operating state identifier to access a first channel of the first record and last channel of the last record, a comparator to compare the first channel with a second channel or a third channel with the last channel, the second channel corresponds to a previously classified record of the first record and the third channel corresponds to a previously classified record of the last record, and a duplicator to, in response to the first channel matching the second channel, or the last channel matching the third channel, create a replica of the second channel or the third channel to store in place of the AOT data.

Abstract: Methods, apparatus, systems and articles of manufacture to classify all other tuning (AOT) data are disclosed. An example apparatus includes a media interface to access first channel information corresponding to a first record at a first time. An operating state identifier is to store the channel information corresponding to the first record at the first time in a data store. An AOT identifier is to determine the first record is classified as AOT data. A comparator is to compare the channel information at the first time with second channel information at a second time, wherein the second channel information at the second time corresponds to a previously classified media record. A record updater is to, when the first channel information matches the second channel information, update the first record with a media identification from the matched classification classified media record and store the updated first record in the data store.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. Example apparatus to identify media include at least one memory, instructions, and at least one processor to execute the instructions to: determine a first ratio based on a first time interval and a second time interval of a monitored media signal; determine a second ratio based on the second time interval and a third time interval of the monitored media signal; generate a first ratio signature based on the first and second ratios; and initiate transmission of the first ratio signature to a recipient that is to compare the first signature with a second ratio signature to identify the media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. Example methods disclosed herein include determining a first ratio based on a first time interval and a second time interval of a plurality of time intervals of a reference media signature, the reference media signature based on a media signal associated with reference media, respective ones of the plurality of time intervals corresponding to respective adjacent characteristics identified in the media signal. Disclosed example methods also include determining a second ratio based on a third time interval and a fourth time interval of the plurality of time intervals of the reference media signature. Disclosed example methods further include generating a reference ratio signature based on the first and second ratios, the reference ratio signature used to identify the reference media.

Abstract: Methods, apparatus, systems and articles of manufacture to classify all other tuning (AOT) data are disclosed. An example apparatus includes a media interface to access first channel information corresponding to a first record at a first time. An operating state identifier is to store the channel information corresponding to the first record at the first time in a data store. An AOT identifier is to determine the first record is classified as AOT data. A comparator is to compare the channel information at the first time with second channel information at a second time, wherein the second channel information at the second time corresponds to a previously classified media record. A record updater is to, when the first channel information matches the second channel information, update the first record with a media identification from the matched classification classified media record and store the updated first record in the data store.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. Example methods disclosed herein include determining a first ratio based on a first time interval and a second time interval of a plurality of time intervals of a reference media signature, the reference media signature based on a media signal associated with reference media, respective ones of the plurality of time intervals corresponding to respective adjacent characteristics identified in the media signal. Disclosed example methods also include determining a second ratio based on a third time interval and a fourth time interval of the plurality of time intervals of the reference media signature. Disclosed example methods further include generating a reference ratio signature based on the first and second ratios, the reference ratio signature used to identify the reference media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. An example apparatus to identify media includes a memory including computer readable instructions and a processor to execute the instructions to at least determine a first ratio based on a first time interval and a second time interval of a plurality of time intervals of a monitored media signature, determine a second ratio based on a third time interval and a fourth time interval of the plurality of time intervals of the monitored media signature, generate a monitored media ratio signature based on the first and second ratios, and compare the monitored media ratio signature with a reference ratio signature to identify the media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. An example apparatus to identify media includes a memory including computer readable instructions and a processor to execute the instructions to at least determine a first ratio based on a first time interval and a second time interval of a plurality of time intervals of a monitored media signature, determine a second ratio based on a third time interval and a fourth time interval of the plurality of time intervals of the monitored media signature, generate a monitored media ratio signature based on the first and second ratios, and compare the monitored media ratio signature with a reference ratio signature to identify the media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. An example apparatus to identify media includes a delta calculator to determine a first ratio based on a first time interval and a second time interval of a monitored media signal, and determine a second ratio based on the second time interval and a third time interval of the monitored media signal. The example apparatus also includes a signature generator to generate a monitored media ratio signature based on the first and second ratios. The example signature generator also is to initiate transmission of the monitored media ratio signature to a recipient that is to compare the monitored media ratio signature with a reference ratio signature to identify the media.

Abstract: Apparatus, systems, articles of manufacture, and methods to identify and credit media using ratios of media characteristics are disclosed herein. An example apparatus to identify media includes a delta calculator to determine a first ratio based on a first time interval and a second time interval of a monitored media signal, and determine a second ratio based on the second time interval and a third time interval of the monitored media signal. The example apparatus also includes a signature generator to generate a monitored media ratio signature based on the first and second ratios. The example signature generator also is to initiate transmission of the monitored media ratio signature to a recipient that is to compare the monitored media ratio signature with a reference ratio signature to identify the media.

Abstract: Methods and apparatus to identify and credit media using ratios of media characteristics are disclosed herein. Example methods and apparatus determine a first ratio based on a first combination of time intervals of a monitored media signature, the monitored media signature including a plurality of time intervals, respective ones of the time intervals being between respective adjacent characteristics identified in the media, determine a second ratio based on a second combination of time intervals of the monitored media signature, generate a monitored media ratio signature based on the first and second ratios, and compare the monitored media ratio signature with a reference ratio signature to identify the media.

Abstract: Methods and apparatus to identify and credit media using ratios of media characteristics are disclosed herein. Example methods and apparatus determine a first ratio based on a first combination of time intervals of a monitored media signature, the monitored media signature including a plurality of time intervals, respective ones of the time intervals being between respective adjacent characteristics identified in the media, determine a second ratio based on a second combination of time intervals of the monitored media signature, generate a monitored media ratio signature based on the first and second ratios, and compare the monitored media ratio signature with a reference ratio signature to identify the media.

Abstract: Methods and apparatus for multi-purpose metering are disclosed. An example method includes determining whether a portable device is within a vicinity of a household monitoring system based on detecting an identifier via a first radio frequency (RF) signal, when the identifier from the first RF signal is associated with the portable device, determining whether a second acoustic signal includes the identifier associated with the portable device, deactivating a media detection circuit of the portable device when the identifier is detected via both the first RF signal and the second acoustic signal, and activating the media detection circuit of the portable device when the identifier is detected from the first RF signal and the second acoustic signal is absent.

Abstract: Methods and apparatus for multi-purpose metering are disclosed. An example method includes determining whether a portable device is within a vicinity of a household monitoring system based on detecting an identifier via a first radio frequency (RF) signal, when the identifier from the first RF signal is associated with the portable device, determining whether a second acoustic signal includes the identifier associated with the portable device, deactivating a media detection circuit of the portable device when the identifier is detected via both the first RF signal and the second acoustic signal, and activating the media detection circuit of the portable device when the identifier is detected from the first RF signal and the second acoustic signal is absent.

Abstract: Methods and apparatus for multi-purpose metering are disclosed. An example method includes transmitting a first discovery inquiry message in response to a wakeup timer expiration signal, disabling a media detection circuit of the portable device when a base unit responds to the discovery inquiry message, and enabling the media detection circuit of the portable device when the base unit response to the discovery inquiry message is absent.

Abstract: Methods and apparatus for multi-purpose metering are disclosed. An example method includes transmitting a first discovery inquiry message in response to a wakeup timer expiration signal, disabling a media detection circuit of the portable device when a base unit responds to the discovery inquiry message, and enabling the media detection circuit of the portable device when the base unit response to the discovery inquiry message is absent.