Methods and apparatus to generate audience measurement data from population sample data having incomplete demographic classifications are disclosed. An example method includes detecting that a number of impressions a time segment of a video occurred based on messages; detecting that no impressions for the time segment of the video were detected by the database proprietor; determining respective percentages of exposures of the video that are attributable to corresponding ones of multiple demographic groups, determining the respective percentages being based on the first demographic information provided by the database proprietor for exposures of other time segments of the video; attributing respective portions of the number of impressions to the demographic groups based on the respective percentages to determine imputed numbers of impressions; generating adjusted numbers of impressions based on the imputed numbers of impressions; and determining ratings information for the video using the adjusted numbers of impressions.

A multiple-identity secure device (MISD) persistently may store an identification code. The identification code may be stored in an integral memory of the device, or on an interchangeable card received in a physical interface of the MISD. The MISD may generate one or more unique identities (e.g., network addresses) from the stored identification code. The generated identities may be dynamically generated or may be securely stored in the MISD for subsequent retrieval. The generated identities may generate in accordance with an addressing scheme, a global/network setting, or as determined from a received data transmission.

Methods and apparatus to collect distributed user information for media impressions and search terms are disclosed. An example method includes accessing, from a media device, a first identifier and a search term at a first server, the first identifier corresponding to at least one of the media device or a user of the media device, the search term associated with a search request, generating a second identifier based on the first identifier, sending the second identifier and the search term from the first server to a data collection server to facilitate the data collection server to logging the search request, and receiving user information associated with the search request from a database proprietor based on the second identifier.

A watermark image may be generated that includes a first set of encoded pixels each of which is assigned a first transparency value and a second set of encoded pixels each of which is assigned a second transparency value, the second transparency level being different from the first transparency level. The encoded pixels may be distributed among a set of blank pixels such that each encoded pixel neighbors one or more blank pixels in the watermark image, and in particular at least two blank pixels in the watermark image. Herein, each blank pixel may be assigned the second transparency value. The watermark image may be overlaid and blended over a background source image to create an encoded source image. A decoder system may recover encoded information from the encoded source image.

Techniques are described herein for optimizing the presentation of content through obtaining viewership metrics, generating multiple renditions of presentations of content, and selecting optimized renditions of content. One aspect includes associating a request for viewership metrics with a presentation of content, publishing the presentation of content, and receiving information of the viewership metrics associated with the presentation. Another aspect includes copying a presentation of a content item, creating a second presentation of the content item for publishing over one or more channels, and linking the presentation of the content item to the second presentation of the content item, such that a change to one propagates to the other of the presentation of the content item or the second presentation of the content item. In yet another aspect, a content rendition may be selected for presentation based on performance of the rendition out of multiple renditions in an auction.

Methods and apparatus to distribute media content are disclosed. An example apparatus includes a client interface to receive a request from a wireless communication device for authorization to present media, the media received at the wireless communication device in an encrypted format. A database is to store an association of the wireless communication device and a wired network termination unit. A record interface is to, in response to the request for authorization, query the database based on an identifier of the wireless network communication device to determine whether the wired network termination unit is authorized to receive the media via a wired communication path, and in response to determining that the wired network termination unit is authorized to receive the media via the wired communication path authorize the wireless communication device to decrypt and present the transmitted media.

A multimedia content selection system includes at least one processor executing instructions for performing operations. The operations include receiving a playback request from a playback unit, including a content identifier, providing, to the playback unit, a manifest with at least a set of content segment identifiers based on the content identifier, each content segment identifier identifying a content segment associated with a content stream, receiving a content stream request comprising one of the content segment identifiers, and selecting a segment for playback from the content segment associated with the received content segment identifier, determined using a set of content selection rules.

Described herein are techniques for seamlessly transitioning streaming content between user devices. In some embodiments, such techniques may be performed by a content transition platform. The techniques may comprise receiving a transition request including a set of identifiers for a plurality of user devices that includes at least a first user device from which the transition request originated. The techniques may further comprise identifying one or more active communication sessions associated with the plurality of user devices, each of which comprise a series of communications between one of the plurality of user devices and a content provider. The techniques may further comprise determining, based on the one or more active communication sessions, a second user device of the plurality of user devices, and transitioning an active communication session of the one or more active communication sessions between the first user device and the second user device.

Methods, apparatus, systems and articles of manufacture are disclosed to estimate an audience population. An example apparatus includes at least one memory; instructions in the apparatus; and processor circuitry to execute the instructions to: determine whether respective ones of respondents are associated with a characteristic; detect unique instances of the respective ones of the respondents; in response to the respective ones of the respondents being associated with the characteristic, increase a sample capture count by one; in response to detecting the unique instances of the respective ones of the respondents exhibiting the characteristic, increase a unique capture count by one; determine a seed population estimate based on the unique capture count; and determine a population estimate having the characteristic based on the sample capture count, the unique capture count, the seed population estimate, and a number of available samples.

Systems, methods, and devices are described herein for placing secondary content into a break of unknown duration in a stream of primary content. In one aspect, the described techniques may include streaming a segment of primary content, for example, by a reduce capability client device, such as a mobile device or tablet. The device may receive information indicative of a break in the streaming of the primary content. The device may play secondary content based on receiving the information indicative of the break. The device may determine when a next segment of the primary content is available, and begin streaming the next segment of the primary content upon detecting that the second segment of the primary content is available.