41 results about "Compact disc" patented technology

The invention discloses a finite-state machine coverage rate statistical method of a VCD (Video Compact Disc) file, which is characterized in that a mapping relationship is established between a signal name and state transition information by directly analyzing a YAML (Young Attribute Markup Language) format file of finite states and transition behaviors among the states compiled in a design stage and adopting a hash table mapping technology, so that the constant-level efficiency of reducing time complexity to O (1) is realized. When the VCD file generated by simulation is processed, two strategic file reading methods are adopted, and the file processing flow is simplified. And the uniqueness and accuracy of data processing are ensured through a self-defined Hash algorithm. In simulation data processing, screening is carried out according to the rule of the first character of the data, and only key state transition information is reserved. According to the method, the defects of processing the VCD file and counting the coverage rate of the finite-state machine under the condition of limited resources in the prior art can be effectively overcome, the counting speed of the coverage rate of the finite-state machine is increased, the efficiency of the verification process is improved, and remarkable performance improvement is brought to the verification stage of integrated circuit design.

1. The name of the design product: Headphone (N100). 2. The use of the design product: Headphone used in connection with conventional audio players such as music player, CD player, radio, TV, personal computer, mobile phone, etc. 3. The design points of the design product: In shape. 4. The picture or photo that best indicates the design points: Perspective view.

1. Name of the product in this design: Headphones. 2. Purpose of this design: A headset for making calls and connecting to conventional audio players, such as music players, CD players, radios, televisions, personal computers, mobile phones, etc. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

1. Name of the product in this design: CD rack. 2. Purpose of this design: For the storage and placement of CDs. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. The name of the design product: Headset. 2. The use of the design product: The product is used as a headset by connecting with a general audio player such as a portable music player, a CD player, a radio, a TV set, a personal computer, a mobile phone, etc., and the product has an audio signal input / output function. 3. The design points of the design product: in shape. 4. The picture or photograph best indicating the design points: perspective view 1.

The present application relates to the technical field of data storage backup, and especially relates to a method for seamlessly recording audio and video based on a double-disc embedded system. Step S1, cache the audio and video information to be recorded; Step S2, load disc A; Step S3, record; Step S4, periodically detect the memory occupation ratio and adjust the corresponding parameters to the corresponding values; Step S5, continue recording disc B and calculate the audio information similarity of disc A, and adjust the corresponding running parameters of the recording unit to the corresponding values during the recording process of disc B according to the similarity; Step S6, send a termination signal to complete the recording. Compared with the prior art, the present application has the beneficial effect that during the recording process of disc A, the central control unit periodically detects the memory occupation ratio in disc A, and adjusts the corresponding parameters to the corresponding values according to the detection results, thereby ensuring the completeness of the recorded data and the recording effect.

1. The name of the design product: Headphone (HIFi). 2. The use of the design product: Earphone for audio playing equipment, including music player, CD player, radio, TV, personal computer and mobile phone, etc. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.

The invention provides a method for obtaining compensation CD deviation of a mask, the mask and an etching pattern, and belongs to the field of semiconductors. The method for acquiring the compensation CD deviation of the mask comprises the following steps: providing an ion implantation layer; based on the actual measurement values and the deviation of the first distance and the second distance, establishing a curve of the deviation of the test pattern changing along with the first distance and the second distance; acquiring actual measurement values of the first distance and the second distance of the target pattern in the active region and the isolation region; and based on the changing curve and the actual measurement values of the first distance and the second distance of the target graph, obtaining the CD deviation value of the mask of the target graph. According to the invention, the offset is compensated to the actual design size of the mask, and after the mask is exposed in an actual product, the accuracy of the critical line width CD of the photoresist can be improved, and the phenomenon of photoresist collapse is improved.

The invention discloses a method for automatically measuring CD in a color film RGB surface in the technical field of color film RGB surfaces, and the method comprises the steps: designing an I-shaped opening consistent with an RGB opening in size in a blank region of a photomask; designing a BM layer on the RGB; the position of the Mark is designed according to the actual situation; and the edge of the RGB color resistor is automatically identified and grabbed by a measuring machine. According to the method for automatically measuring the CD in the RGB surface of the color film, the measurement precision of the RGB CD can be improved, and manual measurement errors and workload of personnel are reduced.

This utility model discloses a CD storage box, including a box body with evenly spaced slots inside. Each slot contains a placement box containing a CD. A fixed plate is rotatably connected to one side wall of each slot. The placement box has a semi-circular structure, with a follower plate at one end that extends and retracts into the fixed plate. A linkage plate is rotatably connected to the edge of the placement box away from the follower plate. Multiple slots are provided inside the box, allowing for the storage of multiple CDs. Each CD has an individual cover for closing, preventing the removal of one CD from affecting the others. Lifting the corresponding cover allows the linkage plate to pull one end of the placement box up, causing it to rotate and rise along the connection with the follower plate, tilting outwards for easy removal of the CD. Protective pads protect the CDs from wear and tear and prevent them from being thrown out by inertia.

According to the CD player convenient for taking out the optical disc, in the working process of the CD player convenient for taking out the optical disc, when the optical disc in the CD player body needs to be taken down, the pop-up switch on the CD player body is pressed, and the optical disc bearing frame is popped up. And in the process, the optical disk bearing frame is propped against the bearing table in a sliding manner. The pressing column on the spring pin is pressed, in the process, the first driving block drives the ejection block to partially penetrate through the ejection channel and the ejection hole to be inserted into the containing groove, the optical disc is ejected out of the containing groove, and therefore a user can take down the optical disc from the optical disc bearing frame conveniently. The safety locking mechanism improves the safety and stability of the CD player convenient for taking out the optical disc, and when the optical disc bearing frame abuts against the limiting block, the ejection hole is communicated with the ejection channel, so that the ejection block partially penetrates through the ejection channel and the ejection hole to be inserted into the containing groove, and the optical disc is ejected out of the containing groove. According to the CD player convenient for taking out the optical disc, the optical disc can be taken out conveniently, so that the replacement of the optical disc is time-saving and labor-saving.

1. The name of the design product: earphone (M21). 2. The use of the design product: earphone used in connection with conventional audio players such as music player, CD player, radio, TV, personal computer, mobile phone, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: external CD-ROM (CD small). 2. The use of the design product: for CD reading, and SD card, CF card reading and USB interface expansion. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. The name of this design product: the main body of the earphone (TWS). 2. Purpose of the product of this design: headphones for audio playback devices, which include music players, CD players, radios, televisions, personal computers, mobile phones and other electronic products. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic drawing 1. 5. Designate Design 1 as the base design. 6. Other circumstances that require explanation: This design is a partial design. The portion shown by the dotted line in the view does not constitute a part of the design for which protection is sought, and the portion shown by the solid line in the view represents the design for which protection is sought.

This product is a digital audio player that can output music data imported from an information terminal, external memory, personal computer, disc player, etc. connected to the product via wireless communication or a communication cable to audio equipment such as speakers. By operating the switches, jog dials, knobs, etc. located on the top surface of the product, it is possible to change the playback speed and pitch of multiple songs imported as music data, thereby applying various effects to the output music data.

The utility model belongs to the technical field of photo albums, and particularly relates to a bowfold photo album with matte photographic paper. Comprising a cover and a plurality of photographic papers, the front surfaces of the photographic papers are folded from the middle, and card papers are pasted between the photographic papers and between the photographic papers and the cover, so that the photographic papers and the card papers form an inner book of a bowback structure, plug cloth is pasted at the two ends of the folded part of the photographic papers of the inner book, and the cover comprises a front cover, a back cover, a flexible cover and a spine. The front cover, the back cover and the spine are wrapped and bonded by flexible leather to form an openable and closable cover structure, a flip cover is fixed on the back cover, one end of the flip cover is magnetically attracted on the front cover through a magnetic attraction structure, a decorative plate is fixed on the front cover, and a hidden pocket and a pocket cover are fixed on the flip cover. The photo album has the functions of containing the optical disc and the USB flash disk without affecting the attractiveness of the photo album, and the photo album, the optical disc and the USB flash disk are prevented from being lost due to separate storage of the photo album, the optical disc and the USB flash disk.

1. Name of the product in this design: CD player. 2. Purpose of this design: This design is mainly used as an electronic device for playing CDs and outputting audio. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

1. The name of the product of this design: Headphones (1923 model). 2. Purpose of the product of this design: Headphones connected to conventional audio players such as music players, CD players, radios, televisions, personal computers, mobile phones, etc. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

1. The name of the design product: CD (rabbit crystal). 2. The use of the design product: the design product is used for data storage of psychological music CD. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a thin product, so the left view is omitted; the design product is a thin product, so the right view is omitted; the design product is a thin product, so the top view is omitted; the design product is a thin product, so the bottom view is omitted.

1. The name of the design product: Headphone (new model). 2. The use of the design product: Headphone for connecting with conventional audio player such as music player, CD player, radio, TV, personal computer, mobile phone, etc. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view 1.

1. The name of the design product: Headset. 2. The use of the design product: The product is used as a headset by connecting with a general audio player such as a portable music player, a CD player, a radio, a TV set, a personal computer, a mobile phone, etc. The product has a function of transmitting and receiving sound. 3. The design points of the design product: In shape. 4. The picture or photograph best indicating the design points: Fig. 1.

1. The name of the product of this design: Headphones (ST‑2923 series). 2. Purpose of the product of this design: Headphones connected to conventional audio players such as music players, CD players, radios, televisions, personal computers, mobile phones, etc. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic drawing 1. 5. Designate Design 1 as the base design.

This product is a speaker box with an amplifier, radio tuner, and digital audio disc player. It can be connected to an external device via wired or wireless communication and can play audio from the external device.