Abstract: Piston mode Lamb wave resonators are disclosed. A piston mode Lamb wave resonator can include a piezoelectric layer, such as an aluminum nitride layer, and an interdigital transducer on the piezoelectric layer. The piston mode Lamb wave resonator has an active region and a border region, in which the border region has a velocity with a lower magnitude than a velocity of the active region. The border region can suppress a transverse mode.

Abstract: A communication device including a wearable accessory having a first power source, a telecommunications device including a transceiver configured to allow wireless communication, wherein the telecommunications device is configured to couple and decouple with the wearable accessory, and wherein the telecommunications device is configured receive power from the first power source when coupled with the wearable accessory.

Abstract: A wearable communication device including a bracelet including an integrated first power source, and a telecommunications device including a transceiver configured to allow wireless communication, wherein the telecommunications device is configured to couple and decouple with the bracelet, and wherein the telecommunications device is configured receive power from the first power source when coupled with the bracelet.

Abstract: A wearable communication device including a bracelet including an integrated first power source, and a telecommunications device including a transceiver configured to allow wireless communication, wherein the telecommunications device is configured to couple and decouple with the bracelet, and wherein the telecommunications device is configured receive power from the first power source when coupled with the bracelet.

Abstract: A wearable communication device including a necklace having an integrated first power source, and a telecommunications device having a transceiver configured to allow wireless communication, wherein the telecommunications device is configured to couple and decouple with the necklace, and wherein the telecommunications device is configured to receive power from the first power source when coupled with the necklace.

Abstract: A communication device including a wearable accessory having a first power source, a telecommunications device including a transceiver configured to allow wireless communication, wherein the telecommunications device is configured to couple and decouple with the wearable accessory, and wherein the telecommunications device is configured receive power from the first power source when coupled with the wearable accessory.

Abstract: Methods and systems enable a user to inject sound clips from an audio device into a telephone conversation. The invention includes an adapter that connects to an audio player, a user listening device, and a communication device such as a telephone. In different embodiments, these connections may be wired, wireless or a combination of both. The audio player is selectable and of the type wherein stored audio clips can be changed, for example an MP3 player, CD or DVD player, video player, computer or the like. In operation, the user selects an audio clip from the audio device for substantially immediate and simultaneous playback through the user listening device and the telephone. In this manner, both the user and any other party to the telephone conversation can hear the audio clip substantially simultaneously.

Abstract: Methods and systems enable the injection of sound effects, for example professional voices, music, special effects, etc. into electronic communications, for example mobile telephone conversations, land line telephone conversations, voice over Internet protocol conversations, etc. In various disclosed embodiments of the invention, the sound injection occurs through a simplified process, each sound effect being classified both by category and specific sound. In different embodiments, a sound effect is selected through the selection first of a category followed by a specific sound, or by the direct selection of a specific sound from within a category.