In a method for packet transmission using an ARQ protocol on transmission channels in a digital transmission system, for channel coding, turbo coding is carried out in a turbo coder at the transmitter end and turbo decoding is carried out in a turbo decoder at the receiver end using soft-decision output signals. A first pepper corer is configured to remove a stem and facilitate removal of the core from a relatively large variety of pepper such as a bell pepper, while a second pepper corer is sized to remove a stem and facilitate removal of the core from a smaller pepper, such as a jalapeno pepper. In one embodiment, biological tissue derived from the tunica submucosa layer of the porcine small intestine forms the occlusion shells. The movement mechanism may be an electro-mechanical mechanism, an optical-electro-mechanical mechanism, or an optical mechanism, integrated with the device, or disposed on an interchangeable cover removably mated with a core body of the mobile device. An advantage is that the constant buffer stores the newest version of the programmable constant.