Abstract: A toy vehicle track system of the present application includes electrical connections between the track pieces that allow a central hub, referred to herein as a “portal piece,” to communicate with any track pieces included in the track system. In order to ensure that the portal piece can quickly and accurately identify track configurations that are built, the toy vehicle track system implements a communications protocol that supports communications between any two pieces of track. Based on these communications, the portal piece can determine an orientation, a track type, and a position of any track pieces attached, whether directly or indirectly, to the portal piece. The portal piece can then transmit this information to an electronic device executing an application associated with the track system to allow for digital play on a digital version of the track configuration (among other digital play modes).

Abstract: A toy vehicle track system of the present application includes electrical connections between the track pieces that allow a central hub, referred to herein as a “portal piece,” to communicate with any track pieces included in the track system. In order to ensure that the portal piece can quickly and accurately identify track configurations that are built, the toy vehicle track system implements a communications protocol that supports communications between any two pieces of track. Based on these communications, the portal piece can determine an orientation, a track type, and a position of any track pieces attached, whether directly or indirectly, to the portal piece. The portal piece can then transmit this information to an electronic device executing an application associated with the track system to allow for digital play on a digital version of the track configuration (among other digital play modes).

Abstract: A toy vehicle track system of the present application includes electrical connections between the track pieces that allow a central hub, referred to herein as a “portal piece,” to communicate with any track pieces included in the track system. In order to ensure that the portal piece can quickly and accurately identify track configurations that are built, the toy vehicle track system implements a communications protocol that supports communications between any two pieces of track. Based on these communications, the portal piece can determine an orientation, a track type, and a position of any track pieces attached, whether directly or indirectly, to the portal piece. The portal piece can then transmit this information to an electronic device executing an application associated with the track system to allow for digital play on a digital version of the track configuration (among other digital play modes).

Abstract: A toy vehicle track system of the present application includes electrical connections between the track pieces that allow a central hub, referred to herein as a “portal piece,” to communicate with any track pieces included in the track system. In order to ensure that the portal piece can quickly and accurately identify track configurations that are built, the toy vehicle track system implements a communications protocol that supports communications between any two pieces of track. Based on these communications, the portal piece can determine an orientation, a track type, and a position of any track pieces attached, whether directly or indirectly, to the portal piece. The portal piece can then transmit this information to an electronic device executing an application associated with the track system to allow for digital play on a digital version of the track configuration (among other digital play modes).

Abstract: An electronic learning device for receiving a book having a plurality of successive page spreads, at least one page spread having selectable content and an optically readable page identifier. The device includes a housing configured to receive the book, a position sensor in the housing configured to determine the location of the selectable content on the at least one page spread, an optical sensor in the housing configured to irradiate and detect the page identifier on the at least one page spread and control electronics in the housing operatively coupled to the optical sensor and to the position sensor and configured to synchronize sequential operation of the position sensor and the optical sensor.

Abstract: An electronic learning device for receiving a book having a plurality of successive page spreads, at least one page spread having selectable content and an optically readable page identifier. The device includes a housing configured to receive the book, a position sensor in the housing configured to determine the location of the selectable content on the at least one page spread, an optical sensor in the housing configured to irradiate and detect the page identifier on the at least one page spread and control electronics in the housing operatively coupled to the optical sensor and to the position sensor and configured to synchronize sequential operation of the position sensor and the optical sensor.

Abstract: An electronic learning device for receiving a book having a plurality of successive page spreads, at least one page spread having selectable content and an optically readable page identifier. The device includes a housing configured to receive the book, a position sensor in the housing configured to determine the location of the selectable content on the at least one page spread, an optical sensor in the housing configured to irradiate and detect the page identifier on the at least one page spread and control electronics in the housing operatively coupled to the optical sensor and to the position sensor and configured to synchronize operation of the position sensor and the optical sensor.

Abstract: An interactive learning system has a book, electronic memory, and system electronics. The book has at least one selectable object with a tactile feature. The electronic memory has stored therein data associated with the tactile feature. The system electronics comprises a selection sensor configured to detect the selection of the at least one selectable object, an audio signal generator, and a processor operatively coupled to the electronic memory, the sensor and the audio signal generator. Selection of the tactile feature causes the audio signal generator to produce an audible signal based on the data associated with the tactile feature.

Abstract: An electronic interactive system including an electronic device and a book for use with the electronic device. The electronic device includes an optical page identification system capable of autonomously identifying page identifier codes uniquely associated with each of a plurality of page spreads of the book.

Abstract: A toy aquarium includes a container configured to contain a liquid and a drive mechanism operably coupled to toy characters to impart motion to the toy characters.

Abstract: A toy aquarium includes a container configured to contain a liquid and a drive mechanism operably coupled to toy characters to impart motion to the toy characters.

Abstract: A convertible activity toy for promoting gross motor development in children includes a base receivable on a supporting surface and a top coupled to the base. The top includes a first portion and a second portion whereby the first portion is movable from a substantially coplanar orientation relative to the second portion to a substantially non-coplanar orientation relative to the second portion. The top and base define an opening and an interior space so that an infant can crawl through the opening into the interior space when the top is in the substantially coplanar orientation or so that the child may walk the opening and into the interior space or a portion thereof when the top is in the substantially non-coplanar orientation. The top includes activity items that are attractive to an infant and encourages the infant to reach up to the top by pulling up from a seated position to a standing position using handles or grips disposed on the toy.

Abstract: A child's toy is provided which is convertible between an infant's gym and a toddler's piano. In the infant configuration, a small child can be placed under or seated in front of the toy within reach of hanging shapes. When the infant moves the hanging shapes, a sensory output of music and lights is produced through audio speakers and lighted keys. The infant's gym can be converted into a toddler configuration, which has keys arranged on top, resembling a piano. A toddler standing in front of the piano can produce a sensory output of music and lights by pressing the keys. A mode switch can be adjusted to vary the duration of the sensory output.

Abstract: A child's toy is provided which is convertible between an infant's gym and a toddler's piano. In the infant configuration, a small child can be placed under or seated in front of the toy within reach of hanging shapes. When the infant moves the hanging shapes, a sensory output of music and lights is produced through audio speakers and lighted keys. The infant's gym can be converted into a toddler configuration, which has keys arranged on top, resembling a piano. A toddler standing in front of the piano can produce a sensory output of music and lights by pressing the keys. A mode switch can be adjusted to vary the duration of the sensory output.

Abstract: A child's toy is disclosed that provides for a character that is capable of both visually and audibly displaying a variety of emotional expressions and which is capable of providing these displays in combination with playing a "peek-a-boo" game with the toy character. The toy has a housing that is shaped like a teddy bear, with openings for the bear's eyes and mouth and a pair of paws that rotate to a position where both paws cover the eyes of the bear when mechanically activated by the child. The paws are mechanically interconnected to a disk mounted within the housing which contains different representations for the eyes and the mouth of the bear, each of which is configured to represent a different emotional expression, on its front surface. The representations for the eyes and the mouth of the bear appear through the eye and mouth openings in the bear's face.

Abstract: A holder for an IV tube roller clamp is removably secured in the housing of an electronic infusion device, and has in opposite ends thereof a pair of photo-electric devices, one of which detects when the roller of the clamp is in its tube opening position, and the other detects when the roller is in tube closing position. A lever is pivotal on the housing between a closed position in which it operatively connects the IV tube to a pump unit in the housing, and an open position in which it permits removal of the IV tube from the unit. The spring-loaded armature of a solenoid prevents the lever from being opened until the solenoid coil is energized, and the photo-electric devices prevent the solenoid coil from being energized until the roller is in its tube closing position. When closed, the lever overlies part of the tube channel in which the IV tube is seated and also shifts a pressure plate in the pump unit to a position in which a lip thereon overlies another portion of said channel.