An integrated overprint colorful seal with multiple printing surfaces, comprising a seal housing (1), a middle frame (2) accommodated in the seal housing (1), a spring (3) squeezed between the seal housing and the middle frame, a seal body (4) in a regular triangular prism or a quadrangular prism shape, and a driving mechanism. Each side surface of the seal body (4) in the regular triangular prism or quadrangular prism shape is a printing surface (60) in a different color and the printing surface is overprinted on a target object to show a colorful seal pattern. The seal integrates the multiple printing surfaces in an integral whole, can implement semi-automatic overprint of three colors or four colors and is precise in overprint. The seal also supports printing surface replacement and ink-replenishment, and is easy to use and convenient to carry.

An integrated overprint colorful seal with multiple printing surfaces, comprising a seal housing (1), a middle frame (2) accommodated in the seal housing (1), a spring (3) squeezed between the seal housing and the middle frame, a seal body (4) in a regular triangular prism or a quadrangular prism shape, and a driving mechanism. Each side surface of the seal body (4) in the regular triangular prism or quadrangular prism shape is a printing surface (60) in a different color and the printing surface is overprinted on a target object to show a colorful seal pattern. The seal integrates the multiple printing surfaces in an integral whole, can implement semi-automatic overprint of three colors or four colors and is precise in overprint. The seal also supports printing surface replacement and ink-replenishment, and is easy to use and convenient to carry.

A method and system of creating a quilted product. When it comes to traditional quilting, various pieces of fabric are used and sown together to form one large quilt. This method allows a stamp to be utilized to create one single quilted piece. A first stamp is used to apply a coloring liquid to a blank surface to create a first quilted piece. Then, a second stamp is used to apply a coloring liquid to a blank surface to create a second quilted piece. The second quilted piece is adjacent to the first quilted piece such that it abuts against the first quilted piece. Neither the first stamp nor the second stamp comprise an added allowance.

A method is provided for extending the frequency band of an audio signal during a decoding or improvement process. The method includes obtaining the decoded signal in a first frequency band, referred to as a low band. Tonal components and a surround signal are extracted from the signal from the low-band signal, and the tonal components and the surround signal are combined by adaptive mixing using energy-level control factors to obtain an audio signal, referred to as a combined signal. The low-band decoded signal before the extraction step or the combined signal after the combination step are extended over at least one second frequency band which is higher than the first frequency band. Also proved are a frequency-band extension device which implements the described method and a decoder including a device of this type.

Disclosed are an intelligent seal mold device having multifunctional areas and a method for generating an image of a seal mold having multifunctional areas, the intelligent seal mold device having multifunctional areas including a seal housing, a seal mold having multifunctional areas, a distributed ink tank, a storage module, and a selection module. The seal mold having multifunctional areas includes a plurality of functional areas; the distributed ink tank includes a plurality of ink grooves; the storage module stores a comparison table and a plurality of pieces of functional data of a registered user; and the selection module selects the number of functional areas of the seal mold having multifunctional areas, etc., according to a selection instruction. After being authorized, the registered user is permitted to invoke an image of the seal mold having multifunctional areas to complete digital sealing.

A stamp has a retaining seat, a moving seat, a spring, a handle, and a bottom cover. The moving seat is moveably mounted in the retaining seat. The spring is mounted on the moving seat and abuts the retaining seat. The handle is mounted on the moving seat and extends around the retaining seat. The bottom cover is mounted on a bottom of the retaining seat. The moving seat has a printing assembly and an ink-filling member. The printing assembly has a printing face and multiple ink-filling holes. The ink-filling member is mounted on the printing assembly and has multiple ink-filling tubes. Each one of the ink-filling tubes has a caliber smaller than a caliber of each one of the ink-filling holes. The printing assembly may perform the test print. The combining time of the stamp and operating time of the test print are also decreased.

A method and system of creating a quilted product. A method for the creation of a quilted product includes using a first stamp to apply a coloring liquid to a blank surface to create a first quilted piece. Then, a second stamp is used to apply a coloring liquid to a blank surface to create a second quilted piece. The second quilted piece is adjacent to the first quilted piece such that it abuts against the first quilted piece. Neither the first stamp nor the second stamp comprise an added allowance.

A method and system of creating a quilted product. A method for the creation of a quilted product includes using a first stamp to apply a coloring liquid to a blank surface to create a first quilted piece. Then, a second stamp is used to apply a coloring liquid to a blank surface to create a second quilted piece. The second quilted piece is adjacent to the first quilted piece such that it abuts against the first quilted piece. Neither the first stamp nor the second stamp comprise an added allowance.

An integrated overprint colorful seal with multiple printing surfaces, comprising a seal housing (1), a middle frame (2) accommodated in the seal housing (1), a spring (3) squeezed between the seal housing and the middle frame, a seal body (4) in a regular triangular prism or a quadrangular prism shape, and a driving mechanism. Each side surface of the seal body (4) in the regular triangular prism or quadrangular prism shape is a printing surface (60) in a different color and the printing surface is overprinted on a target object to show a colorful seal pattern. The seal integrates the multiple printing surfaces in an integral whole, can implement semi-automatic overprint of three colors or four colors and is precise in overprint. The seal also supports printing surface replacement and ink-replenishment, and is easy to use and convenient to carry.

Disclosed are an intelligent seal mold device having multifunctional areas and a method for generating an image of a seal mold having multifunctional areas, the intelligent seal mold device having multifunctional areas including a seal housing, a seal mold having multifunctional areas, a distributed ink tank, a storage module, and a selection module. The seal mold having multifunctional areas includes a plurality of functional areas; the distributed ink tank includes a plurality of ink grooves; the storage module stores a comparison table and a plurality of pieces of functional data of a registered user; and the selection module selects the number of functional areas of the seal mold having multifunctional areas, etc., according to a selection instruction. After being authorized, the registered user is permitted to invoke an image of the seal mold having multifunctional areas to complete digital sealing.