A system comprising modules. Each module includes: a presentation system including one or more of a speaker and a video screen; and a port. In use, if the presentation system includes the speaker, the system produces sounds derived from data obtained via the port. If the presentation system includes the screen, the system displays images derived from data obtained via the port. The module can also include connectors and the system can also include actuators. Each actuator, in use, can be coupled without soldering to a connector, and the presentation system of each module can operate in response to the actuator or actuators coupled to said each module. The system can also include data storage devices, each adapted to be releasably coupled to a respective port, and the port can be selected from: microchip socket and USB port. The system can be used as part of a method.

A method of pre-processing audio for playback through an audio greeting card having at a speaker array of two or more speakers and an audio control circuit, by defining one or more device parameters associated with the greeting card, measuring an audio response from the greeting card when playing an original audio file, deriving correction gains to correct magnitude response characteristics of the audio response, deriving compressor threshold values to minimize level distortion of the audio response, deriving a virtualization transfer function from the one or more device parameters, and applying the correction gains, compressor threshold values, and the virtualization transfer function to generate an output audio file.

The invention relates to a foldable greeting card having an outer side and an inner side and a number of electronic and electrical components, the card (1) being provided in a foldable manner, comprising a fold at one point which divides the card preferably into two parts (2, 3) of equal size, thus having two halves which can be folded congruently on top of one another, at least one part (2) being provided at least partially in two layers with an inner and an outer layer, and at least some of the electronic and electrical components comprising light and acoustic elements (5, 9) for generating light and sound effects, a switch (8) for activating the light and acoustic elements (5, 9), a circuit or microprocessor (7) for controlling the electrical components, and a power supply (10) being provided between the inner and outer layers of the card (1), and wherein the inner side of the two-layered part (2) comprises cut-outs (4) through which various light effects of the light elements (5) can shine through and wherein the light effects and sound effects are synchronized with each other to simulate fireworks.

Some embodiments provide a greeting card or a postcard with a practical joke feature. The practical joke feature can include a sound that is repeatedly played for several hours, days, weeks, etc. The card can include a mode of operation configured to allow a purchaser to experience the sound without arming the practical joke feature. The card can include a pouch that contains one or more surprises for card recipients that attempt to open or destroy the card. The card can include one or more features that resist destruction of the card and/or internal components of the card that implement the practical joke feature.

A thin film video device is mounted onto a card stock and incorporated into a card, such as a greeting card. The thin film video device comprises a thin film video display coupled to a computer chip and a speaker. The thin film video device is powered by a local power source such as a small battery. The thin film video device is activated when the user unfolds the card, at which time an audiovisual message is displayed on the thin film video display and through the speaker.

A greeting card and associated techniques for storing audio tracks corresponding to definable touch zones of the greeting card is provided. In one aspect, the greeting card includes a body for securing a photograph thereon. A sensor array can be disposed within the body of the greeting card to detect touch gestures through the secured photograph, among other things. The greeting card can include a microprocessor that enables touch zones to be defined via the sensor array, such that a touch zone can correspond to various objects depicted on the card or a photograph secured thereon. Among other things, the greeting card can include a microphone for recording an audio track corresponding to each generated touch zone, a speaker for playing back an audio track corresponding to a selected touch zone, and a memory for storing touch zones and/or associated audio tracks.

A greeting card having an audio message recording and playback device permits recording of personalized audio messages to be played upon opening of the greeting card. The recording device is operable in either a trial mode or a use mode. In the trial mode, which would be applicable when the card is displayed in a store, a potential purchaser may experience the functionality of the card by recording their own test message. The test message is played back initially for the potential purchaser but is not subsequently played back to be later heard by other potential purchasers. In the use mode, which the card may be switched to after purchase by the giver of the greeting card, a user recorded message may be played back repeatedly upon subsequent openings of the card. The user recorded message may be followed by a prerecorded recording, such as a song. Additional prerecorded messages, such as voice prompts with instructions for recording a message, may also be included for activation in the trial mode.

The present invention discloses a greeting card having at least two surfaces and at least three edges, the greeting card comprising an intrinsically valuable base material comprising titanium or a titanium alloy and one or more gemstones embedded on one or more of the surfaces or edges; wherein the greeting card has a thickness of between about 1.0 mm and about 1.5 mm, a first dimension between about 70 mm and about 90 mm, and a second dimension between about 50 mm and about 60 mm; and further wherein the greeting card depicts one or more of a letter, number, symbol, artistic design, image, or message.

A greeting card having an audio message recording and playback device permits recording of personalized audio messages to be played upon opening of the greeting card. The recording device is operable in either a trial mode or a use mode. In the trial mode, which would be applicable when the card is displayed in a store, a potential purchaser may experience the functionality of the card by recording their own test message. The test message is played back initially for the potential purchaser but is not subsequently played back to be later heard by other potential purchasers. In the use mode, which the card may be switched to after purchase by the giver of the greeting card, a user recorded message may be played back repeatedly upon subsequent openings of the card. The user recorded message may be followed by a prerecorded recording, such as a song. Additional prerecorded messages, such as voice prompts with instructions for recording a message, may also be included for activation in the trial mode.

A method of pre-processing audio for playback through an audio greeting card having at a speaker array of two or more speakers and an audio control circuit, by defining one or more device parameters associated with the greeting card, measuring an audio response from the greeting card when playing an original audio file, deriving correction gains to correct magnitude response characteristics of the audio response, deriving compressor threshold values to minimize level distortion of the audio response, deriving a virtualization transfer function from the one or more device parameters, and applying the correction gains, compressor threshold values, and the virtualization transfer function to generate an output audio file.